Deeply religious Backstreet Boys singer Brian Littrell is far from the perfect Christian -- telling TMZ, he doesn't pray for everyone like he's supposed to ... and he definitely doesn't pray for Lindsay Lohan.
Brian was at the airport in L.A. this week when we asked if Lindsay ever comes up in his prayers -- and Brian replied, "Unfortunately, no."
He adds, "I'm probably breaking a lot of ministers' hearts. It's like, 'He's a Christian. He should pray for everybody' ... But she's not in my prayers at night. I'm sorry."
This might explain a lot.