Miley Cyrus To Perform On 'American Idol'

Singer says she will appear on April 15 show; Tweets that Ryan Seacrest is 'wayyyy creeeppyyy!'

From one "American Idol" to the next: After a string of visits from "Idol" winners past — as well as this week's head-spinning Lady Gaga performance — the "Idol" stage will be graced by none other than [artist id="2408193"]Miley Cyrus[/artist] on April 15.

While "Idol" has not yet announced the appearance, Cyrus revealed on her Web site on Thursday that she had just pre-taped the performance of her new single, "The Climb," for air in two weeks.

"Miley was so nervous to perform on 'Idol' and just before performing wrote [on her Twitter account], 'Wish me luck ... getting nervous! Time for 'Idol,' " according to an account on her site.

And that wasn't all Cyrus Tweeted about her visit to "Idol" on Wednesday. She also offered the update, "Whoo hoo performing! I love Allison [Iraheta]," she enthused, giving some props to the youngest remaining finalist in the competition, a fellow 16-year-old. A short time later, after taping her performance, Cyrus added, "Just did 'Idol' and met Allison! Vote for Allison, she rocks!!!!"

Following the recent revelation that the group numbers on "Idol" are lip-synched, Cyrus also made sure to explain that, "Just fyi, 'Idol' was pretaped because everrryy performer is pretaped on elimination night, that doesn't mean it's fake! I sang live 100 percent."

Also, FYI, after appearing on Ryan Seacrest's radio show on Thursday morning, Cyrus blasted the "Idol" host on Twitter, writing, "Ryan Seacrest is scaring me!!! HELP! ... Ryan is wayyyy creeeppyyy! ... I am NOT kiddddnggg!"

A spokesperson for "Idol" — which typically does not reveal which artist will appear in the pre-taped performance segment on the next elimination show until the end of the previous elimination show — said she could not confirm Cyrus' appearance at press time. Reports have also surfaced that former "Idol" finalist Jennifer Hudson has pre-taped a performance for the show, but a spokesperson would also not confirm those rumors.

Cyrus also Tweeted that she was totally joking about marrying boyfriend Justin Gaston on Seacrest's show when she said "if he gets a pretty ring," in response to a question about a possible wedding in the future. "I am NOT getting married!" she explained. "I'm 16 and super focused on my career and just livinnggg life!"