Jennifer Lopez, Adam Lambert ready for AMA stage

LOS ANGELES – Jennifer Lopez plans to include a boxing ring, fireworks and an on-stage costume change in her performance. “American Idol” runner-up Adam Lambert will incorporate leather, chains and handcuffs into his.

Each will perform their new singles on Sunday’s American Music Awards, which honours the year’s top-selling artists in eight popular genres.

Broadcast live from the Nokia Theatre, the show is to feature performances by more than a dozen artists, including Rihanna, Whitney Houston, Green Day, Lil’ Wayne, Lady Gaga, Eminem, Jay-Z and Carrie Underwood.

Janet Jackson will open the program with a medley of songs, but producer Larry Klein wouldn’t say whether her performance would be a tribute to Michael Jackson. Said Klein: “It’s a surprise.”