Muy caliente!

She may have totally moved on with a new man, but Jennifer Lopez only had eyes for ex-hubby Marc Anthony in this just-released teaser for their upcoming talent competition show, Q'Viva: The Chosen.

The former pair announced their split in July, but reunited for a joint reality TV production that really shows off their chemistry -- JLo is even seen doing a sexy dance for Marc!

The teaser features the ex-couple's trip to Puerto Rico, where they work side-by-side to discover authentic Latin American talent. Lopez proudly exclaims in the clip: "I am Latina and this is who we are. Isn't it fabulous? Isn't it amazing? Doesn't it bring tears to your eyes and make you want to smile and dance and jump and stay up all night?"

The series will debut in Spanish on January 28 on Univision, an English network has not yet been announced.