Marilyn Manson must have been happy to hear that Gary Numan, the British star whose early '80s hit, "Cars," helped popularize synth-based music, was back on tour after nearly 15 years.

When Numan played the Palace last week in Los Angeles, Manson made a rare guest appearance (see "Marilyn Manson Joins Gary Numan Onstage"), dueting with Numan on "Down In The Park," a song Manson had covered on a 1995 E.P.

As we previously reported (see "Manson Taps Studio Ace Beinhorn"), Manson is currently holed up in a studio working on the follow-up to 1996's "Antichrist Superstar," and is scheduled to play a series of European music festivals in June and July.