Steven Tyler is quitting his role as a judge on American Idol - because he wants to put rock 'n' roll first.
Tyler said he was leaving the show after two seasons to rededicate himself to Aerosmith.
The frontman said he had loved every minute on the singing contest but added: "It's time to bring rock back."
He went on to say: "After some long, hard thoughts, I've decided it's time for me to let go of my mistress American Idol before she boils my rabbit," said Tyler.
The 64-year-old was jokingly referring to the 1987 Michael Douglas and Glenn Close thriller Fatal Attraction.
"I strayed from my first love, Aerosmith, and I'm back - but instead of begging on my hands and knees, I got two fists in the air and I'm kicking the door open with my band."
Aerosmith are currently touring the US with Tyler, and have an album due out in the autumn.
Tyler's departure from Idol leaves original judge Randy Jackson and Jennifer Lopez, but the singer-actress' future with the show is cloudy.
Lopez said she was saddened to hear Tyler was leaving.
"I can't even imagine anyone else there right now because I've just spent two years sitting next to him," she said.
"I love Steven, and we became close during that time. We were a great support for each other, on an adventure that neither one of us knew what it was going to be. So it's hard to hear that he won't be doing it."
Lopez also said Tyler's departure would play a role in her decision to stay or go.
She had already suggested there was a good likelihood that she would not be coming back.
"All hope is never lost, not all hope. But at the same time, there are too many things that I need to think about," she said.
"I know they want me back, I know that I want to go back, but it's not as simple as that.
"When I started Idol, I signed on for one year. I didn't even think about doing it for two years, let alone three years. To make the decision to go back a second year was a big deal for me."
The change in the judging panel comes as Idol fares relatively poorly in the ratings.
Its finale, which saw Phillip Phillips crowned the new American Idol, drew 21.5 million viewers, the lowest in its 11-season history.
The Fox competition, which started off with Jackson, Simon Cowell and Paula Abdul as judges, has made various judging changes over the years.
Ellen DeGeneres joined one season, and songwriter Kara DioGuardi was added as a fourth judge while Cowell and Abdul were still a part of the panel.
The addition of Tyler and Lopez two years ago added fresh star power to a show that, while still a powerhouse, was seeing its audience slowly wane.