BOING!! IT'S A MEG 'N ' RUSS REBOUND!

Scorned by rocker John, star rekindles old flame

SCORNED Meg Ryan has rebounded from her messy breakup with rocker John Mellencamp — straight into the arms of ex-lover Russell Crowe!

That’s the word from sources, who tell GLOBE the Sleepless in Seattle siren, 58, has picked up where she left off with the Gladiator hunk, 56, more than 20 years ago!

“Meg and Russ are hooking up and having a blast!” an insider exclusively dishes.

“This rebound was just what Meg needed after things went south with John. Thankfully, Russell was there to scoop her back into his arms, and they’re falling for each other all over again!”

Passion first sparked for the pair while shooting Proof of Life together in 2000 and their hot-and-heavy hookup helped end her marriage to actor Dennis Quaid, sources say.