The love-in was mutual as the Prime Minister tweeted about the Californian band afterwards
The NME cover stars played the song in session for BBC Radio 1's Live Lounge
The Strokes singer gave the sister trio advice when the were starting out
Disclosure are runners-up, followed by Bastille in third place
The Los Angeles band will play the London record store the day after they release their debut album 'Days Are Gone'
Band will play seven gigs following the release of debut album 'Days Are Gone'
Bass player claims she "fucked the system" during afternoon set at festival
Ellie Goulding will also play at month long event in London this September
Jorma Taccone is also a member of comedy band The Lonely Island with Andy Samberg