Led Zeppelin will play its first U.S. show since July 24, 1977, this June at the Bonnaroo festival in Manchester, Tenn., according to an email published in industry commentator Bob Lefsetz's newsletter. The report also says Metallica will headline the event.

Speculation about additional shows for Zeppelin, which will play a stated one-off Dec. 10 in London in tribute to late Atlantic founder Ahmet Ertegun, has been buzzing for weeks.

A Bonnaroo spokesperson had no comment on the email. A Led Zeppelin spokesperson could not be reached at deadline.

Summer Zeppelin shows would reportedly conflict with a tour by frontman Robert Plant and Alison Krauss, which is presently being booked. However, Zeppelin bassist John Paul Jones has played at Bonnaroo on several occasions, most recently this summer when he jammed on his old band's songs with Ben Harper and the Roots' ?uestlove.

As for Metallica, Bonnaroo would likely provide a launching pad for the group's next album, expected sometime in 2008 via Elektra.