Let's make this birthday one to remember.

46 years old (Born on March 01, 1979)

Happy Birthday, Mikkel "Viking Warrior" Kessler! You've knocked out opponents across four weight classes and claimed five world titles—clearly, candles aren't the only thing you're good at blowing out. Your epic 12th-round knockout of Dimitri Sartison in June 2008 to clinch the WBA super middleweight title still has fans cheering louder than your birthday guests after cake.

As you celebrate another round in life's ring, remember: age is just a number—but those championship belts are forever. Keep bobbing and weaving through life with style; here's hoping your birthday packs as much punch as your legendary right hook!