Rihanna Changes Up Goes Glam for American Idol (watch!) 1Rihanna set aside her dalliance with sado masochism and donned a floor-length gown for her performance on American Idol last night (Apr. 14). She also sported yet another hair do, drawing on what must be a closet full of wigs.

The 23-year-old star sang her new single “California King Bed,”which she debuted on Country Music Awards with in a duet with Jennifer Nettles.

Rihanna drew a standing ovation from judges Jennifer Lopez, Steven Tyler and Randy Jackson and the audience.

The Umbrella singer, who is about to go on tour, said her show will be more accessible to fans than ever.

“We’ve designed the stage and we have two sections on the stage where fans can actually be in the show and on the stage, closer than they’ve ever been,” she said. “It’s real VIP.”

Rihanna also confirmed that former Idol judge Simon Cowell had offered to make her a judge on his new Idol-like show “X-Factor.”

But she said she was forced to turn it down because of a busy schedule.

Rihanna raised eyebrows when she said in a Rolling Stone interview that she likes being submissive in the bedroom and engages in rough sex, including being tied up and spanked.

S&M has been a theme in her music and her shows lately. She caused an uproar in England over a raunchy television performance. But last night she was all about glamor.

Check out the video of her performance below.