NEW YORK (AP) -- Joni Mitchell is following the lead of Paul McCartney in joining with the coffee giant Starbucks to release her comeback album.

Hear Music, a record label formed in partnership with Starbucks Corp. and the Concord Music Group, said Wednesday that Mitchell is its second signing. "Shine," her first album of new compositions since 1998, will be released on Sept. 25.

McCartney's album "Memory Almost Full" came out last month and was played relentlessly at Starbucks franchises, where listeners could purchase it with their coffee. The disc has sold 447,000 copies, 45 percent of them in Starbucks stores, the company said.

The new venture has attracted interest from veteran artists both because the music business is collapsing around them, and their fans are much more likely to be spending time in Starbucks these days than in music stores.

Mitchell worked with Hear Music two years ago as it released a disc of favorite Mitchell songs selected by various artists. She had essentially retired from making music and said this project was one of the things that rekindled her interest, said Ken Lombard, president of Starbucks Entertainment.