Neil Patrick Harris & David Burtka: Duet Dudes

How I Met Your Mother star Neil Patrick Harris and actor boyfriend David Burtka arrive at NYV’s JFK airport from Los Angeles sipping on Starbucks on Wednesday.

The couple will soon be performing a duet together at Broadway Backwards 3, the gender-bending concert of show tune favorites benefiting the Lesbian, Gay, Bisexual & Transgender Community Center.

Says Burtka to BroadwayStars, “I’m very excited that this is the first time Neil and I will have sung together. But it’s also nerve-wracking, because the line-up of performers is so top-notch. It should be a great night.”

10+ pictures inside of duet dudes Neil Patrick Harris and David Burtka…