Teen Mom 2 Trailer: New Baby Mama Drama!

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Amber Portwood would be proud. Teen Mom 2 promises major blowouts this January, including 19-year-old Jenelle Evans takes a swing at her own mother.

A brawl is sparked when her mom, Barbara, seeks custody of Jenelle's 16-month-old child Jace. Come to think of it, Farrah Abraham would also be proud.

Jenelle joins 16 and Pregnant alums Leah Messer, Kailyn Lowry and Chelsea Houska for a new season of medical scares, absentee dads and bad boyfriends.

Teen Mom 2 premieres January 11 on MTV. Watch the trailer here: