Question: What do Nine Black Alps and Walk off the Earth have in common?

Context paragraphs:
Tiny Evil Records: Tiny Evil Records is a record label imprint run by Interscope Records executive Luke Wood.  Its acts include AFI, Jimmy Eat World, Brand New and Nine Black Alps, among others.

Paper Crown: Paper Crown is the second solo album by Nine Black Alps front-man Sam Forrest, released December 28, 2009 on Desert Mine Music.

Sirens (Nine Black Alps album): Sirens is the fourth studio album by English alternative rock band Nine Black Alps, released on October 8, 2012 on Brew Records.  The album is the first to feature bassist Karl Astbury, following the departure of Martin Cohen in 2011.

Walk off the Earth: Walk Off the Earth is a Canadian independent alternative rock, ska, and reggae rock band from Burlington, Ontario.  They are known for their music videos of covers and originals.  The band is well known for its covers of pop genre music on YouTube, making use of uncommon instruments such as the ukulele and the theremin, as well as looping samples.  The band's recorded music and videos are produced by member and multi-instrumentalist, Gianni "Luminati" Nicassio.

Candy for the Clowns: Candy For The Clowns is the fifth studio album from British rock band Nine Black Alps.  It was released in May 2014 under Hatch Records.

The Sorry Kisses: The Sorry Kisses are a rock band formed in 2006 around the core duo of singer-songwriter Hayley Hutchinson and Sam Forrest of Nine Black Alps.

Glitter Gulch EP: Glitter Gulch EP is an EP released by English band Nine Black Alps in 2006 on Island Records.  These are all b-sides from the singles released from their debut album, Everything Is, except for "Coldhearted" which is a Black session recording.

Locked Out from the Inside: Locked out from the Inside is the third studio album by Manchester-based alternative rock band Nine Black Alps, released on October 5, 2009.  The album was released digitally with the purchase of tour tickets on August 6, 2009.  The album was released on the band's own Lost House Records label.

Love/Hate (album): Love/Hate is the second album by English rock band Nine Black Alps.  It was recorded by Dave Sardy (Jet, Oasis) in L.A. and is the follow-up to debut album "Everything Is" (and Glitter Gulch EP) and was released on October 29, 2007.

Nine Black Alps: Nine Black Alps are an English alternative rock band, formed in 2003 in Manchester.  The band consists of vocalist-guitarist Sam Forrest, guitarist David Jones, drummer James Galley and bassist Karl Astbury.

Supporting paragraphs: Nine Black Alps Walk off the Earth
Answer: band