Matt and Kim

The Brooklyn-based duo Matt and Kim -- Matt on keys and vocals, Kim on drums -- started playing energetic dance punk in the early 2000s, then edged into the mainstream in 2007 with the song "Daylight," which became a viral sensation thanks to its witty video. They held on to that level of popularity by releasing albums and eye-catching videos that enthusiastically melded punk-pop, hip-hop, and radio pop.