There's a bit of irony in the title of Let It Be, a celebration of the Beatles that imagines what might have been if the lads from Liverpool had reunited one more time for John Lennon's 40th birthday, Oct. 9, 1980. OK, sure, that would have been fantastic, provided someone locked Yoko in a closet to keep her off the stage. Ditto Linda. Would Paul have insisted on playing a few Wings covers? "Let Me Roll It," OK, but please, no "Live and Let Die." That might hit too close to home. Let's face it, epics don't just peter out, gods don't take curtain calls and the Beatles brevity and iconic relationship to the '60s are part of what made them the freakin' Beatles. Just let it be. Still, we suppose it's OK to dream to some hella-catchy tunes. Dallas Summer Musicals brings Let It Be, the ultimate celebration of Beatlemania with live cover versions of all the hits to the Music Hall at Fair Park, 909 First Ave. Shows are at 7:30 p.m. March 7-18, with a 1:30 p.m. matinee Thursday, March 16, and Saturdays and Sundays through Sunday, March 19. Tickets are $18 to $105 at tickemaster.com.