Hayden Panettiere dating boxing champ Wladimir Klitschko, again

"Nashville" star Hayden Panettiere has reportedly reunited with ex-boyfriend Wladimir Klitschko.

TMZ reports that Klitschko, a 6'6" Ukrainian World Boxing Organization champ, dropped Panettiere off at the airport and they asked her about the relationship on camera. Draw your own conclusions from her giggle fit. TMZ certainly did.

Panettiere was most recently romantically linked to Scotty McKnight, a former NFL player for the New York Jets. The couple supposedly split in December.

She's also nominated for a Golden Globe award as Best Supporting Actress in a TV series. We'll see if Klitschko joins her on the red carpet Sunday night.