WELL, it didn't take long for US actress and former Heroes star Hayden Panettiere to fall back into the arms of an ex-beau.

The 23-year-old broke up with American football player Scotty McKnight in December, after 11/2 years together.

She is now reunited with former lover Wladimir Klitschko, 36, a Ukrainian heavyweight boxer. They had dated from 2009 to 2011 and reportedly kicked off the new year with a trip to Dubai.

A source told Life & Style Weekly: "Hayden's so happy. They're definitely in love again and tighter than ever.

"They have been travelling together... He's even planning to visit her while she films in Nashville."

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