No, for real, ch-check this out!

“Ch-Check It Out” is the opening track and lead single from the Beastie’s sixth studio album To the 5 Boroughs – their first single in five years. It found international success – reaching #8 in the UK and various other numbers on several pop charts around the world including a #68 peak in the US in May 2004. It also topped the US Alternative Songs Chart and was nominated for Best Rap Performance by a Duo or Group at the 2005 Grammys.

The Boys famously performed “Ch-Check It Out” on Late Night With David Letterman in 2004 starting at a subway terminal and having a cameraman follow as they walk through the city and onto the set of the show, where Mix Master Mike was operating his turntables.

Samples include:

• “The O.J. Chronicles” — an episode of "The Joe Frank Show” by Joe Frank & David Cross

• “(Sittin’ On) The Dock of the Bay” by Peggy Lee

Beastiemania reports that “Ch-Check It Out” has been performed in 117 known concerts.

• 1st Known Performance: 5.10.2004 — Club Maria, Berlin, Germany

• Last Known Performance: 6.9.2009 — Rams Head, Baltimore, MD, US