Hayden Panettiere Kiss: Actress Kisses Boyfriend Wladimir Klitschko At Miami Heat Game [PHOTO]

“Nashville” star Hayden Panettiere is back with her boyfriend, Ukranian boxer Wladimir Klitschko.

The 23-year-old actress was seen kissing Klitschko, 37, while watching the NBA Miami Heat take on the Charlotte Bobcats. She wore a flirty hot-pink halter top, while he opted for a plain white T-shirt and jeans.

The couple split in May 2011 but were spotted together in January of this year. At the game, he and Panettiere looked quite affectionate, watching on the sidelines as the Heat won its 26th straight game.

Panettiere had previously been with NFL player Scotty McKnight, but they split in December.

"They never fell completely out of touch," a source told Us Weekly about Panettiere’s relationship with the 6-foot-6 boxer.

Previously, the 5-foot-1 actress dated her “Heroes” co-star Milo Ventimiglia when she was 18 years old. He was 30 years old at the time.

“It was never a case of me making a decision, saying, ‘I want to date older men,’”she said in an interview last week with the Telegraph.

“But I am drawn to people who make me up my game, who bring me up to their level. I want to be with somebody who is more worldly than me, somebody who can give me guidance and is completely secure and comfortable with who they are.”

The fact that she was a child star also seems to have impacted her dating history with older men. Panettiere had guest spots in “Ally McBeal” and “Malcolm in the Middle” and films like “Remember the Titans” at a young age.

“I would go back to school [after filming] and have such a hard time fitting in with the kids my own age,” she told the Telegraph. “For several years, school was absolute torture.” She admits that it forced her to grow up quickly.

When asked how old she feels, Panettiere replied, “In my mid-thirties probably.”