Katy Perry, Christina Aguilera, and Lea Michele Star in the Latest Fashion Collision (VIDEO)

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What do Christina Aguilera, Katy Perry, Justin Bieber, and Lea Michele all have in common?

They’re just some of music’s big stars involved in the latest installment of Fashion Collision — where music and fashion meet.

Each week, we’ll be rounding up your favorite music-makers at the intersection of music and style to bring you the lowdown on their fashion choices — the good, the bad, and the ugly.

And last week, we saw all three from some of music’s hottest talent, including on-again-off-again Mayer and Perry, Glee’s musically-inclined Michele, and more.

From a see-through dress and a magenta mane to a dressed-to-the-nines duo and stage style showdown, the style sparks flew for our latest episode of fashion collision.

For a look at which stars hit the right note — and which were off-pitch, watch this week’s episode.

Who do you think were the week’s style rock stars? Tell us your picks. 

Catch another episode of Fashion Collision in the video below.

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