Justin Bieber, Kevin Hart, Lil Kim Party at Floyd Mayweather Las Vegas Birthday Bash for Daughter [PHOTOS]: Iyanna Turns 13, World Champ Boxer's $250K Diamond Watch Gift

Floyd Mayweather is a legendary world champ boxer and one of Forbes' highest-paid athletes. He's also a huge family man! The undefeated fighter recently threw a huge birthday bash for his 13-year-old daughter Iyanna. He hired her favorites singers (Justin Bieber and Lil Kim) and favorite actor (Kevin Hart) to attend the b-day festivities... he also surprised Iyanna with an adorable pink cake and $250,000 diamond watch. What a lucky youngster for having one of the world's richest dads!

Some fathers get worried when their daughters finally enter the "troubling" teenage years... but for Mayweather, it's simply a time to celebrate in Sin City! Check out these awesome birthday party photos the boxer recently posted on Instagram:

floydmayweather: "Nothing but the best for my daughter @moneyyaya. Thank you @justinbieber. Welcome to Las Vegas."

floydmayweather: "My daughter @moneyyaya had fun at her party last night. I want to thank @kevinhart4real for showing up."

Lil Kim was also in attendance, and little Iyanna recieved a sparkly diamond watch from her pops. Check out more photos here. Iyanna officially turns 13 on Monday (May 20)... they celebrated in Las Vegas on Saturday (May 18).

During a recent episode of "All Access" (before his fight with Robert Guerrero), Mayweather was featured spending some quality time with Iyanna:

Life's pretty good when you're an offspring of the Money Team!