I found this on CNN. I think it's from the AFI tribute to George Lucas.
William Shatner -- Capt. Kirk from another great space saga, "Star Trek" -- offered a musical number "from one star voyager to another."
He performed a variation of "My Way," telling Lucas "you did it your way" while dancers in "Star Wars" stormtrooper costumes did a chorus line routine.
"Live long," Shatner told Lucas. "You've already prospered enough."

William Shatner -- Capt. Kirk from another great space saga, "Star Trek" -- offered a musical number "from one star voyager to another."
He performed a variation of "My Way," telling Lucas "you did it your way" while dancers in "Star Wars" stormtrooper costumes did a chorus line routine.
"Live long," Shatner told Lucas. "You've already prospered enough."