Despite rumors that Velvet Revolver members Slash and Duff McKagan will rejoin Guns N' Roses for a summer tour, the group is actually at work on its sophomore RCA album with an unlikely collaborator:

Despite rumors that Velvet Revolver members Slash and Duff McKagan will rejoin Guns N' Roses for a summer tour, the group is actually at work on its sophomore RCA album with an unlikely collaborator: uber hip-hop producer Pharrell Williams.

Williams is also working with Velvet Revolver frontman Scott Weiland on a song titled "Happy," which will likely appear on Weiland's second solo album. Williams confirmed the projects with Billboard.com but did not reveal additional details.

"With the first record, it was kind of a feeling out process on a technical level," Weiland told Billboard.com in December. "We were sort of bonded by blood in a sense, because we'd gone through very similar circumstances. On this record, I have a real concept in mind. Because of that, it will be a very album-oriented record instead of a singles-driven record."

As for Williams, there's still no word on when his long-delayed Interscope solo debut, "In My Mind," will be released. According to a spokesperson, the artist is still working on the album.

Without giving away specifics, Williams did tell Billboard.biz he plans to hit the studio in the coming weeks with Slim Thug, Snoop Dogg, Jay-Z, Nas and Ludacris.