Ian McKellen - Flaunts His Gandalf Underwear - Video

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We all knew Sir Ian McKellen was magical, but we didn't know that power extended to his Gandalf underwear, which he showed off at Only Make Believe's 14th Annual Gala. Perfection.

McKellen did a costume change onstage at the "Make Believe On Broadway" event, purposefully showing off his fabulous tighty whities which read "You Shall Not PASS" on the derriere.

Credit: INF Photos

And just in case you didn't think this was all fabulous enough, McKellen had to remove a pink tank top and bright gold short-shorts to reveal the wizard he always keeps close to his heart. And butt.