Tom Cruise and Katie Holmes are thinking big when it comes to celebrating daughter Suri’s second birthday, according to insiders.

The Hollywood couple are said to be planning an A-list party with all the trimmings-and-then-some when their adorable tot hits the ‘terrible twos’ on April 18.

"Katie is so excited - she's taking care of every last detail," a TomKat pal tells OK!.

"You can count on special things like individual place settings and festive bunting. And when Katie plans a party, she plans a party!"

Suri's big sister Isabella,15, and 13-year-old brother Connor, as well as Tom's mother, Mary Lee Mapother, and Katie's parents, Martin and Kathy Holmes will mingle with TomKat's celebrity buddies at the 'exclusive' bash.

But if any Suri Cruise birthday well-wishers bring flowers, it could end in tears.

"Suri occasionally has allergies," says the friend. "So Katie will make sure that there's nothing to upset them!"