'Happy' (Pharrell Cover) - Pentatonix

This YouTube video is an a cappella cover of Pharrell's hit song, "Happy." This cover is performed by the group Pentatonix. Check out this awesome cover above.

'Evolution of Beyoncé' - Pentatonix

This YouTube video is from Pentatonix. In this video, the group performs a medley of songs from Beyoncé. Check out this awesome video above.

'Daft Punk' - Pentatonix

This YouTube video is from Pentatonix. In this video, the group performs a compilation of music from electronic music duo Daft Punk. This song is featured on their new album PTX, Volume 2. Check out this awesome video above.

'Royals' (Lorde Cover) - Pentatonix

This YouTube video is from Pentatonix. In this video, they cover Lorde's popular song "Royals." Check out this a cappella cover above.

'Roar' (Katy Perry Acoustic Cover) - Tori Kelly & Scott Hoying

This YouTube video is an acoustic cover of the popular new song "Roar," by Katy Perry. This cover is performed by Tori Kelly, as well as Scott Hoying from Pentatonix.

Pentatonix - Evolution of Music

The above YouTube video is a music video from Pentatonix. In this video, they perform a medley of songs that display the evolution of music.

'The Wizard of Ahhhs' by Todrick Hall featuring Pentatonix

This musical YouTube video is from Todrick Hall and features the a cappella group Pentatonix. The video utilizes a mashup of popular pop songs to accompany the storyline of The Wizard of Oz. Check out this incredibly creative video above.

'The A Team' (Ed Sheeran Cover) - Kina Grannis, Scott Hoying, and Kevin Olusola

This YouTube video is a cover of Ed Sheeran's hit song "The A Team." This cover is performed by Kina Grannis, along with Scott Hoying and Kevin Olusola from Pentatonix.

'Radioactive' (Imagine Dragons Cover) - Pentatonix and Lindsey Stirling

This YouTube music video is a cover of Imagine Dragons' hit song Radioactive. The song is performed by Pentatonix with Lindsey Stirling on the violin. Check out this amazing cover above.

Pentatonix - 'We Are Young' Cover

Today on YouTube I came across this awesome video of Pentatonix. In this video they cover Fun.'s song "We Are Young." Be sure to watch this great cover video above.

Pentatonix's LMFAO Flash Mob

Yesterday on YouTube I came across this awesome video of Pentatonix. In this video, Pentatonix and Todrick Hall start a flash mob and sing a couple of songs from LMFAO. Be sure to watch this amazing video above.

Pentatonix Covers Gotye's 'Somebody That I Used to Know'

Yesterday, thanks to my friend Roni, I watched this awesome video of Pentatonix. In this video, they cover Gotye's popular song "Somebody That I Used to Know." Be sure to watch this amazing video above.