From Wikepedia:—

Pomplamoose are an American indie music and indie jazz duo consisting of multi-instrumentalists Jack Conte and Nataly Dawn. The band was formed in the summer of 2008.[2][3] The name of the band derives from the French word pamplemousse, meaning grapefruit.[4] Despite the group's presence being mostly through video uploads to YouTube and MySpace with few live performances, the collaboration has garnered significant fan support, with approximately 105,000 subscribers on their YouTube channel as of March 2010.

I am in love. More videos here.