Hitting up one of the rowdiest all-weekend music festivals of the summer, Hayden Panettiere was spotted at Lollapalooza in Chicago, IL over the weekend.

Apparently, the “Heroes” star was looking to get some new ink and had one of the lounges closed down for three hours so she could a get a new tattoo done in private by the on-hand tattoo artist.

What Ms Panettiere had inked remains unknown, but sources at Lollapalooza said they overheard her talking about celebrating her birthday “a little early” this year. Hayden, who turns 21 on August 21, already has a Leo symbol on her ankle as well as the words “Viviere Senza Rimpianti” - which is Italian for “Live Without Regrets.”