On Planet J. Lo, good-natured guys from Baltimore win eight Olympic gold medals every day. And that’s exactly why Bronx-born Boriqua Jennifer Lopez can’t understand what all the Michael Phelps fuss is about.

The 23-year-old champion swimmer won the hearts of Americans after shattering records at the 2008 Beijing Olympics.

Phelps has distinguished himself as the Most Outstanding Olympian of All-Time….”So what? Big deal,” Jenn says. The film and singing star can’t understand why laymen are so captivated by “the swimmer” when she’s got a triathlon to train for. Priorities, people!

An MSNBC spy overheard the singer blabbering about the swimmer on the set of her Monday morning appearance on Good Morning America. (Video Here)

Jennifer brought the morning newscast along as she trained for the Malibu Triathlon, which will be participating in this October.

Jennifer “couldn’t understand why everyone is talking about that swimmer,” according to a GMA spy. “She couldn’t come up with (eight-time gold-medal winner Michael) Phelps’ name, and then she yammered on about how she was the one training for a triathlon just six months after giving birth, and how that was the big story right now, not ‘the swimmer.’ ”

Good to know you aren’t bitter, Jenn.