The signs as Pitch Perfect characters:

Aries: Bumper Allen

Taurus: Chloe

Gemini: Jesse

Cancer: Benji Applebaum

Leo: Fat Amy

Virgo: Aubrey

Libra: Lily Okanakamura (SUCH A COMPLICATED SURNAME)

Scorpio: Beca (YAS)

Sagittarius: Cynthia-Rose

Capricorn: Gail

Aquarius: Stacie

Pisces: Donald