Floyd Mayweather never does anything small, and his 48th birthday was no exception.

The undefeated boxing legend went all out, celebrating with not just one, but eight different parties over the course of a week. Among the many highlights? His 4-year-old grandson, KJ, joining in on the fun, making unforgettable memories with his world-famous grandad.

According to TMZ Sports, Mayweather and around 400 of his closest family and friends traveled to Miami’s South Beach for the festivities. With no expense spared, the legendary boxer reportedly dropped upwards of $5 million to ensure his guests had an unforgettable time, putting them up in some of the finest hotels throughout Miami Beach.

The celebration kicked off with an All-White Beach Party at Joia Beach on Wednesday night, setting the tone for an epic week. Celebrities in attendance included R&B singer Jacquees, actor and musician Rotimi, and Lil Meech, among other high-profile guests like James McNair and Jona Rechnitz.

One of the standout moments of the celebration was Floyd’s grandson, KJ, the son of Yaya Mayweather and rapper NBA YoungBoy, who was clearly having the time of his life. The energetic 4-year-old was spotted dancing on the beach and even sparring with his legendary grandfather, to the delight of partygoers.

Floyd and KJ’s bond was on full display, proving that beyond the lavish lifestyle and high-profile guests, family remains at the heart of Mayweather’s celebrations.

While the beach party was a spectacle in itself, it was just the beginning. Floyd had a packed itinerary for his birthday extravaganza, including a roller-skating party (one of his favorite activities), a bowling party, an ATV tour, and several club appearances.

The festivities culminated at Booby Trap On The River, a popular Miami nightclub, where Floyd shared glimpses of the final birthday bash on his Instagram on February 23.

Mayweather has always been known for his larger-than-life celebrations, and his 48th birthday was no different. But this year, the most heartwarming moment wasn’t the luxury or the star-studded guest list—it was the special time spent with his grandson, making memories that will last a lifetime.