Even after 6 album releases the Foo Fighters have never had a #1 album. Until now.  Adele is in at #2 selling about half as much as the Foo.  Check out the rest of the top 5 -

MTV - Foo Fighter's Wasting Light, hits the top spot thanks to sales of 235,000, according to figures provided by Nielsen SoundScan. That's more than twice the amount sold by the #2 album, Adele's still-strong 21, which slips down a notch to #2 as sales tick up 5 percent to 93,000. The Foos lead a cavalcade of new faces in the top 10, with reunited bluegrass icons Alison Krauss & Union Station coming in at #3 with Paper Airplane (83,000), folk-rock icon Paul Simon debuting at #4 with So Beautiful or So What, (68,000) and Spanish rockers Mana at #5 with Drama Y Luz (47,000). British pop sensation Jessie J just missed out on a top 10 debut, sliding in at #11 with Who You Are, which sold 34,000 copies.

via Foo Fighters Claim First #1 Album With Wasting Light - Music, Celebrity, Artist News | MTV.