Citi's new national commercial features a couple rock climbing to a song with an emotional female vocal that sounds like it's on the verge of exploding, not unlike a certain Florence + the Machine song. It's not Florence, though it turns out there is a connection between the two artists.

Say hello to Laura Pergolizzi, who goes by the virtually unGoogleable moniker L.P. The song, 'Into the Wild,' is from L.P.'s forthcoming album, but this is not L.P.'s first tour of the rodeo, as it were. Her first album, 'Suburban Sprawl & Alcohol,' came out in 2004, which L.P. parlayed into a gig writing songs for other artists. One of those songs was 'Cheers (Drink to That),' which Rihanna took to No. 7 on the Billboard Hot 100. Christina Aguilera recorded one of her songs for the 'Burlesque' soundtrack as well. Not bad work if you can get it.

Ah, but not everyone can pick their projects so selectively, which is why L.P. agreed to write songs for one Heidi Montag and her lone solo album, 'Superficial.' That may not be at the top of her resume, but on the bright side, at least one of those songs, 'More is More,' was picked as the lead single. L.P. also had one of her songs performed by a contestant during last season's episode of 'The Voice,' which was a hit on iTunes. It may have taken a few years, but it looks as though L.P. is gaining some momentum.

Back to the Florence + the Machine connection: L.P. has teamed up with Machine keyboardist Isa Summers to write some tracks for the upcoming album, which would explain this YouTube clip of L.P. performing 'Dog Days Are Over' in 2010, accompanied by Florence and Summers. This will not likely be the last time the two singers are mentioned in the same breath, but we're guessing that is something L.P. can live with.

Watch L.P.'s 'Into the Wild' in the 2011 Citi Commercial