Who needs Robert Plant? Apparently not the other surviving members of Led Zeppelin, who are ready to pull the trigger on a tour with a new singer if Plant refuses to join in. Sources tell Billboard the frontman first in line for the gig is Myles Kennedy, who has most recently led the rock outfit Alter Bridge. Kennedy has rehearsed with Zeppelin guitarist Jimmy Page, bassist John Paul Jones and drummer Jason Bonham on several occasions, according to sources in the know. In a recent BBC interview, Jones confirmed the band was planning to tour but didn’t refer to Kennedy by name. Although he was onboard for a one-off reunion in December 2007 in London, Plant has steadfastly declined to hit the road with Zeppelin. In late September, he issued a statement saying he has “no intention whatsoever of touring with anyone for at least the next two years,” and also wished Page, Jones and Bonham “nothing but success with any future projects.” If things move forward, the biggest question would be what to call the group. Would Zeppelin fans stand for it if the original name was used despite Plant’s absence? There may be one unintended side effect should Kennedy bolt Alter Bridge, which has released an album each for Wind-Up and Universal. That band features the non-singing members of Creed, who split with frontman Scott Stapp in 2004. But sources indicate there would be big bucks in a Creed reunion tour and that the band may indeed rise again.