Kat Graham's super-sleek, all-black ponytail is no more!

At KIIS FM's Wango Tango Saturday, the Vampire Diaries actress, 22, debuted a brand-new do for summer: ombre hair color that fades from black roots to strawberry blonde ends.

The "Put Your Graffiti on Me" singer's contrasting hues have also been spotted on stars like Ciara and Rihanna, who worked the black-on-blonde look before she went for full-on dark locks in April.

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Besides contrasting roots and ends, the other big hair trend celebrities can't seem to stop experimenting with is hot pink hair dye.

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Since the beginning of the year, several stars including January Jones, Ashley Tisdale and Lauren Conrad have popped up sporting either pink streaks or fuchsia-dyed ends.

This article originally appeared on Usmagazine.com: Kat Graham Debuts Blonde Hair, Extreme Dark Roots