Tom Cruise is bonkers.

There's really no other way we can put it. He jumps on couches. He gets married a lot. He shares his bizarre opinions on all sorts of political and social issues.

Regardless, he remains one of Hollywood's biggest stars, having starred in hits from A Few Good Men and Risky Business to Jerry Maguire and Tropic Thunder.

More importantly, for all his wackiness, Tom Cruise is basically harmless and seems like he cares about being a good dad to his kids (Isabella Cruise, Connor Cruise and little Suri Cruise) more than anything. Which is what really matters in the end.

So cheers to you, Mr. Katie Holmes, on your 47th birthday today. We hope it's one to remember. Click to enlarge some classic Tom Cruise pictures below ...