I recently just saw Passion Pit in concert, and they were absolutely amazing!!
But one of the openers was Icona Pop who were also incredible! I originally heard one of their songs before in a commerical (probably one of those trendy car or Apple commercials). They're a Swedish electronic pop duo, and their songs just make me want to have a one man dance party in my room. Even though summer is kind of far away- their songs would make an amazing summer anthem. So if you haven't heard of Icona Pop yet, checckk 'em out!
"Nights Like This" Icona Pop
ALSO- if you haven't heard of Passion Pit you need to listen to at least one song:)
"Carried Away"