Posey won a Teen Choice surfboard last year for his role on Teen Wolf, as did the show which is currently in its fourth season. Both are hoping to clinch another win this year in the categories of Choice Summer TV Star: Male and Choice TV Show: Sci-Fi/Fantasy, respectively.
But when he isn't prepping for his hosting gig, Tyler is planning for another big night. The 22-year-old is set to marry his longtime girlfriend Seana Gorlick later this year. The couple began dating at age 11.
"The wedding planning has been awesome and intense, and stressful and perfect, and everything is just the way that it should be," he tells ET. "I love it."
You can catch Tyler hosting alongside Modern Family's Sarah Hyland when the 2014 Teen Choice Awards air live on Sunday at 8pm on FOX.