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2006: GLOSSY WAVES
Although Stephen wasn't the mastermind behind these gorgeous glossy waves, the hairstylist notes that RiRi has the ability to pull off practically any do, which is why the evolution of her hair has been "something like a roller coaster -- Rihanna has tried so many looks from simple to wow."
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2007: SPIKY BANGS
"This was our first VMAs together," says Stephen, who cites this asymmetrical fringe style as one of her favorite Rihanna looks ever. "This was actually a full installation [of extensions], and no one knew. So I decided to make it a little funky and add some highlights."
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2008: COLORFUL TIPS
Going into this look with a "very edgy and goth state of mind," the hair pro decided to play up the singer's short style with some bright blonde streaks. "We wanted to dress it up a bit," Stephen tells PeopleStyle. "So we decided to add some texture and take [the hair] away from the face."
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2010: FIERY LOCKS
Surprise: This look is actually the result of a last-minute wig … which spent time in the microwave before ending up on Rih's head! "We were shooting a movie in Hawaii when Eminem asked to [Rih] come perform," says the pro, who "had to source a red wig in 48 hours." There were still more snafus to come: "When the wig arrived backstage, the color was all wrong and Rihanna wasn't having it," she explains. "I had to recolor it in our trailer, so I threw it in the microwave to speed up the process … the rest is history!"
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2012: CHIC PIXIE
Rihanna's close crop for this year's show was short and sweet — a contrast to the long styles she'd been rocking up until that point. "I was so happy when she decided she wanted to go short that day," says Stephen. "We relaxed [the style] and chopped it all off the night before." The star's vibrant matte red lip and glowy skin rounded out the gorgeous look.
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2013: UNEXPECTED MULLET
Here's a hairstyle only Rih could get away with: A grown-out mullet. (Yes, you read that right.) "Her hair kinda just evolved into this [style]," says the hair pro. "I added some extensions to the back to exaggerate the mohawk. Good times!"