The 19-year-old is scheduled to attend the annual ceremony with her band The Scene after they were tipped in the Choice Group category.
"I'll be at the Teen Choice Awards this year - it's actually on my birthday. I'm going to go to dinner with my family; some of my grandparents are coming in from Texas, so it'll just be nice family time," she said.
Photos: Kareena Kapoor Khan, Kangana Ranaut at the Mumbai airport
Photos: Virat Kohli-MS Dhoni's bromance, Team India in LOL mode
Bollywood celebs show you colours for Navratri 2017
Birthday special: Chris Gayle and his multiple records in cricket
In Pictures: 17 dreaded on-screen villains of Bollywood