Liam Gallagher has started a new band with his former Oasis bandmates — minus his older brother Noel. Guitarist Gem Archer, bassist Andy Bell, and drummer Chris Sharrock are working with Gallagher on new material; Gallagher promised in an Italian radio interview that this version of the group (which will have a new name) will make their live debut in a few months. [RollingStone.com]

Kanye West made his first onstage appearance since interrupting Taylor Swift’s MTV Video Music Awards acceptance speech in September when he joined Beyonce during her Sunday night show at London’s O2 Arena. West rapped on the song “Ego”; Jay-Z also made a cameo during the concert, performing on “Crazy in Love.” [NME.com]

R.I.P. U.K. hip-hop artist Derek B., who died over the weekend after suffering a heart attack at age 44. Beginning as a DJ at the age of 15, Derek B.’s first single “Rock the Beat” appeared in 1986; his best-known album was 1988’s Bullet From a Gun. He also worked as a producer, collaborating with Eric B. and Rakim and the Cookie Crew. [AllHipHop.com]

Grizzly Bear’s tour bus was in an accident on Thursday night after the band’s show in Munich, but fortunately the group was unharmed. The bus and the band’s trailer, however were “hit and rendered immovable.” Though Grizzly Bear missed their Saturday night gig opening for Wilco, the band plans to continue their European tour through the end of November. [Pitchfork.com]

Buzz band the xx is now a trio. Keyboardist/guitarist left the group after missing a concert in October; the band’s front man Oliver Sim said, “We’ve been in a band with Baria since we were 16 and have known her since we were 12. It’s just been a case of, I suppose, growing apart?” [Guardian.co.uk]

The Beatles never broke up? That’s what a mashup album of songs by the Beatles and John, Paul, George and Ringo on their own lets you pretend. [TheDailySwarm.com]