1. Lennon and Maisy - Boom Clap (Charlie XCX)
These adorable sisters are ridiculously talented, and also have a roles on ABC's Nashville. Oh, did I mention Lennon is 15 and Maisy is 11? Yeah.
You can buy the studio version on iTunes here.
2. DJ Fresh & Ellie Goulding - All I Want (Kodaline)
Ellie Goulding takes a step back from her usual dance anthems, and delivers a beautifully stripped-down version of All I Want while showcasing her ridiculous vocals.
3. Sam Tsui & Casey Breves - Thinking Out Loud / I'm Not The Only One (Ed Sheeran & Sam Smith)
A Sam Smith and Ed Sheeran mash up? Done well? Bravo, Sam Tsui and Casey Breves. Bravo.
4. Demi Lovato - Give Me Love (Ed Sheeran)
It's no secret that Demi is a vocal power house, and hearing her take on Give Me Love is just further proof of her talent.
5. Louisa Wendorff - Blank Space / Style (Taylor Swift)
Louisa's YouTube is full of amazing mash ups, but this one is so good it's approved by Taylor herself.
Buy the single on iTunes here.
6. The Queen and King & Less Is More - Cool Kids / Riptide (Echosmith & Vance Joy)
With 4 and a half million streams on Spotify, this mash up will be stuck in your head, guaranteed.
Buy it on iTunes here.
Listen to it on Spotify here.
7. Miley Cyrus - Jolene (Dolly Parton)
Ever since the "foam finger" incident, people seem to forget how talented Miley is vocally. Let's go back to a simpler time, where everyone agreed that Miley is #goals.
8. Bon Iver - I Can't Make You Love Me / Nick of Time (Bonnie Raitt)
This song gets covered often, but Justin Vernon's rendition is beautiful. I could fall asleep to this every single night.
Buy it on iTunes here.
9. Tori Kelly & Angie Girl - Thinkin Bout You (Frank Ocean)
You may recognize Tori from Vine, but her talent deserves way more than 6 seconds.
Buy her EP here.
10. Birdy - Skinny Love (Bon Iver)
This song is a popular one to be covered (Ed Sheeran did, and beautifully) but this version is hauntingly beautiful with the piano.
Buy it on iTunes here.