How's this for crazy? This morning, fun.'s Nate Ruess and Paramore's Hayley Williams treated the U.K.'s BBC Live Lounge to a cover of Gotye's hit single, "Somebody That I Used to Know," featuring Kimbra. Williams, however, covered Kimbra's vocals from a studio in Los Angeles via live stream. Kudos to technology!

Interestingly, Gotye's track (which remains at No. 1 for a fifth consecutive week) was preceded by fun.'s smash "We Are Young" featuring Janelle Monae, which topped the charts for six consecutive weeks before making way for "Somebody." This week, "Young" is at No. 3 while Maroon 5's "Payphone" featuring Wiz Khalifa moves up to No. 2.

"Somebody" also sold 321,000 downloads last week to pass the 4 million digital sales mark in the U.S., with 4,037,000 to date, according to Nielsen SoundScan.

Listen to fun. and Hayley Williams cover "Somebody."