Unfortunately for his detractors, not even a party-hearty Britney Spears -- and a muscle-bound wrestling champion -- can body-slam Kevin "K-Fed" Federline into Hollywood has-been oblivion.
Like the cockroach, he just won't go away.
Federline -- who is in the middle of a divorce from Spears, and is seeking spousal support and sole custody of the two sons he has with the pop diva -- made his in-ring debut Monday night on World Wrestling Entertainment's "Raw" program against WWE champion John Cena.
The confrontation stemmed from a run-in the two had in October when Federline appeared on "Raw" to promote his CD, "Playing With Fire," and Cena insulted the aspiring rapper's credibility as a hip-hop artist.
Federline in turn insulted the audience and Cena, and was slammed to the mat by the 240-pound champ in a move he calls "The FU," setting up the New Year's Day match.
Clad in an oversize black-and-silver boxing robe and booed mercilessly by a crowd of more than 15,000 at the American Airlines Arena in Miami, Federline -- who embodies what late wrestling legend Classie Freddie Blassie called "a pencil-necked geek" -- insisted on being introduced as a "celebrated recording artist, dancer par excellence, and an entertainment mogul."
For the record, poor K-Fed's "Playing With Fire" got burned on the charts, selling 6,500 copies in its first week of release in late October.
Fans who wanted to see Federline get a beating -- even if it was choreographed according to wrestling story lines -- were disappointed initially.
K-Fed's match with Cena was not for his title. It was a no-disqualification contest, which meant there were no rules.
After it appeared Cena was going to defeat Federline with an FU, a 348-pound wrestler named Umaga appeared and attacked the champ, helping the former Mr. Britney Spears get the victory.
But fear not wrestling fans and Federline haters, he did not escape unscathed.
Later that night, Federline was a guest commentator for another Cena match. When Federline decided to get involved in that match, Cena picked him up and FU'ed him to the delight of a raucous crowd.
Federline now joins celebrities such as Mr. T, Cyndi Lauper, Dennis Rodman, Jay Leno, and the late Andy Kaufman who have thrown their hats into a wrestling ring.
Though his encounters with Cena may not have been as memorable at Mr. T's Wrestlemania moments, Federline seemed to relish the jeers he generated playing the heel (a wrestling term for villain).
Federline told "E! News" in October that his New Year's resolution was "to be a little bit wiser, a little bit stronger."
Still, maybe he better avoid a wrestling ring.