EVERYONE is trying to nail Lindsay Lohan's first post-rehab interview. Well, everyone except for Piers Morgan!

"Lindsay who?" the America's Got Talent judge responded when asked if actress Lindsay Lohan would be his first guest IF he fills Larry King's slot on CNN.

Piers hasn't been officially confirmed for the gig, and when asked about it, he politely responded "I'd love to tell you, but unfortunately I can't."

We caught up with Piers as he was leaving Boa Steakhouse with friends last nigth and was locked outside of Soho house for several minutes. Think that would happen if he gets the King gig?