Happy B-day Anderson: Love, Suze and Kathy

Anderson Cooper got a big surprise for his birthday -- Kathy Griffin and Suze Orman dropped by the studio with cake, confetti, and balloons.

Both first appeared in silhouette and spoke to see if Cooper could identify his surprise guests.

"I have helped build your career to where it is today," friend number 1 -- Griffin -- joked.

"And the only place my interest really pays off is right here on AC360, " Orman followed.

The two walked out on the set to an obviously caught-off-guard Cooper.

"That looks like an expensive suit," Griffin latter quipped. "Denied or approved?" she asked Orman.

"Oh, approved," Orman laughed.