Wladmimir Klitschko and Hayden Panettiere Wladmimir Klitschko and Hayden Panettiere

It's official: Hayden Panettiere is engaged to longtime boyfriend Wladimir Klitschko, her rep confirms to TVGuide.com.

On Wednesday morning, the Nashville star sported her big diamond ring on Live! With Kelly and Michael, prompting Ripa to ask the obvious. "I'm not sure if you want to announce anything ... does that signify anything, is that a promise of something?" Ripa said.

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"I mean, I think it speaks for itself," Panettiere answered before saying, "I am [engaged]."

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Panettiere was first spotted wearing a diamond at a press event in May. Later that week she somewhat denied the impending nuptials by saying, "no ring" when she was asked about it.

Panettiere, 24, and the Olympic boxing champion, 37, first met in 2009 at a book party and dated for two years before calling it quits. They reunited this past spring.