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'Somebody That I Used to Know' by Gotye -

Gotye's hit from 2011 is a brilliant song, and one that is popular among a cappella groups. Give it a try!

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'Fallin'' by Alicia Keys -

Fallin' is one of Alicia Keys' greatest hits, and one that actually begins a cappella! You really can't go wrong with this one.  

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'Imagine' by John Lennon -

This timeless classic is just one of those songs everyone loves and resonates with, and is also one that sounds great a cappella. 

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'Hello' by Adele -

'Hello' is one of Adele's most popular tear-jerking ballads, and despite being pretty hard to sing, it sounds great without the support of musical instruments. 

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'Somewhere Over The Rainbow' by Judy Garland -

This song, originally recorded for the 1939 movie 'The Wizard of Oz,' is a popular choice to sing a cappella. 

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'Hallelujah' by Leonard Cohen -

'Hallelujah' is probably one of the most covered songs in history. In addition to Cohen's, Jeff Buckley's version is also hugely popular. Whichever you prefer, the song is perfect to sing a cappella. 

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'Don’t Worry Be Happy' by Bobby McFerrin -

This feel-good anthem works great a cappella, with a bit of finger snapping. And then there's the whistle part, which sounds pretty cool.

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'My Way' by Frank Sinatra -

This is one of Ol' Blue Eyes' the most covered songs (even though the song is not originally his). 'My Way' is a beautiful tune to sing a cappella. 

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'Amazing Grace' -

Arguably the most famous Christian hymn of all time, this is a song that sounds great a cappella. It does have a few difficult high notes, but it's definitely worth the effort. Written in 1772, many artists have performed it over the years, including Elvis Presley. 

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'How Great Thou Art ' -

This Christian hymn from 1885 is more challenging to sing than 'Amazing Grace,' but it's a quintessential a cappella tune. Many artists have sang it beautifully, including Carrie Underwood.

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'The Lion Sleeps Tonight' by The Tokens -

'The Lion Sleeps Tonight' is just one of those songs that puts a smile on our faces. Plus, it's instantly recognizable right from the first note.

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'I Want It That Way' by The Backstreet Boys -

This is a song most people will join in when they listen to it. The vocal harmonies are amazing when sang in a group, but it can also work great as a solo piece. 

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'Wrecking Ball' by Miley Cyrus -

This powerful pop ballad is all about emotional delivery and control. It's a great song to sing a cappella too. 

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'True Colors' by Cyndi Lauper -

This moving number by Cyndi Lauper has been covered multiple times, and often only one instrument is used (e.g. a guitar). The song however also works great with just the vocals. 

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'I Say a Little Prayer' by Aretha Franklin -

'I Say a Little Prayer' is actually a very popular song among female a cappella groups, but it can also work great performed by an individual singer.

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'Use Somebody' by Kings of Leon -

This is a powerful rock song with a catchy chorus we can't resist but sing along. It also works great sang a cappella, and luckily, if you're performing the song in front of people, they'll likely sing the chorus with you!

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'Bridge Over Troubled Water' by Simon and Garfunkel -

This Simon and Garfunkel classic sounds amazing as a purely vocal performance with two voices harmonizing. 

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'Hero' by Mariah Carey -

'Hero' is one Mariah Carey's greatest ballads, and one that works great a cappella, especially for groups. Of course, like any other Mariah Carey song, it's not easy to sing. 

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'Rockabye' by Clean Bandit (feat. Sean Paul & Anne-Marie) -

This 2018 hit song sounds great sang a cappella. With its high notes on the chorus, 'Rockabye' is by no means an easy song to sing, but if you can pull it off, it will sound great.

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'I Can’t Make You Love Me' by Bonnie Raitt -

Bonnie Raitt's hit ballad sang a cappella will probably make listeners shed a tear or two. 

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'(You Make Me Feel Like) A Natural Woman' by Aretha Franklin -

Aretha Franklin has a number of tunes that work great with vocals only. '(You Make Me Feel Like) A Natural Woman' is certainly one of them. 

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'Chandelier' by Sia -

'Chandelier' is all about emotional delivery and hitting those high notes in a powerful, yet controlled, manner. It's also a great song to sing a cappella. 

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'Fight Song' by Rachel Platten -

This is a fairly challenging song to sing, but it certainly showcases a singer's abilities. It's also a great one to song alone without any musical support. 

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'Slow Hands' by Niall Horan -

Throw in some clapping or finger snapping and you've got yourself a cool beat to make 'Slow Hands' really stand out when sung a cappella. 

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'Moon River' by Audrey Hepburn -

The Academy Award-winning song Audrey Hepburn performed for 'Breakfast at Tiffany's' (1961) is slow and mellow. Indeed, a great song to sing a cappella. 

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'Fire and Rain' by James Taylor -

This sweet ballad is rather heartbreaking, and the human voice alone is capable of conveying such emotions. 

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'Take Me Home, Country Roads' by John Denver -

John Denver's classic sounds great with vocal only. The country ballad is great choice to sing a cappella. 

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'MMMbop' by Hanson -

This catchy pop number actually works great a cappella, especially with if you're singing with other people. 

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'Lost Without You' by Freya Ridings -

The vocals really shine in 'Lost Without You,' making it a perfect choice to sing without any instruments.  

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'The Wedding Song' by Paul Stookey -

'The Wedding Song' is a great choice for wedding ceremonies. It works great acapella too!

Sources: (Music Grotto) (Singersroom) (Music Gateway)

See also: 30 mega popular wedding songs

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