Steven Tyler will be a guest on 'The Tonight Show With Jay Leno' on Friday, Jan. 20, along with 'American Idol' compatriots Randy Jackson and Ryan Seacrest, to promote the new season of 'Idol,' which starts Jan. 18.

Tyler, who is also is scheduled to perform a song, will be joined by none other than his favorite Aerosmith sparring partner, Joe Perry. Perry will be in town working on the long-awaited new Aerosmith album. Tyler's fellow 'Idol' judge, Randy Jackson (who -- don't forget -- was briefly in Journey), will also take part in the performance.

In other Aerosmith/ 'Tonight Show' news, Perry announced via Twitter that he will make a return visit 10 days later, on Monday, Jan. 30. He told fans, “Performing ‘Man of Peace’ on Jay Leno Jan 30th for Amnesty International with some friends @RudyTanzi Paul Santo & Dave Hull.”

Perry's solo performance is in conjunction with the release of 'Chimes Of Freedom: The Songs Of Bob Dylan Honoring 50 Years of Amnesty International' (released Jan. 24 ), which features his recording of 'Man of Peace,' from Dylan's 'Infidels' album.

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