Bad Gal RiRi matched the red carpet to her hair for this fierce look.
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TOO HOT TO HANDLE
As if red hot hair couldn't get more rad, this hair dye glows under black light, making your hair the mane attraction at every party.
Semi-Permanent Hair Color Dye, in Cleo Rose, from Manic Panic. $8.26 (orig. $12.99). jet.com
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The "Stone Cold" singer sported teal and blue locks, styled in a low chingon, to attend the season finale of The X-Factor.
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This permanent hair cream delivers intense shine and pigmentation that can be built up and layered with other tones to give your locks more dimension. Mix several colors and customize your own.
Flare Me Permanent Cream Hair Color in Clearly You, Tough as Teal, Be You Blue from Clairol. $6.49 each. sallybeauty.com
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The Organe Is the New Black star shook it up with 20s-inspired waves and a purple 'do.
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PURPLE MANE, PURPLE MANE
Formulated to nourish and shine, this permanent hair dye will leave you with the color of your dreams.
Nutrisse Ultra Color Nourishing Color Creme in V2 Dark Intense Violet from Garnier. $6.99. target.com
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Bella's ever-changing hair color reminds us to have fun and be bold in our style choices. At last year's American Music Awards the Famous in Love star was giving off party-girl vibes with her two-toned mane and its extra sparkly finish.
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Follow Bella's lead and dip your tips into this cream that's formulated to fade gracefully. To really get the party started, top it off with glitter spray.