And Hayden Panettiere attracted further attention to her new curves by choosing a bizarre dress to attend the ABC Upfronts in New Hayden showed some cleavage. All I care about is Hayden busting out her ever-growing bikini cleavage wowzers! Alright, so Hayden Here’s the uber cute Hayden Panettiere stealing the show. Hayden Panettiere hasn't been in the spotlight for a while, that's why her appearance at the Critics' Choice Awards was great. Her cleavage was great, too.