How does one request licensing for a single song?

Hello there! My name is Faith Adams, and I’m a junior at Birdville High School in North Richland Hills, Texas. Each year, my theater department participates in our state-wide Thespian Festival, and we also have six performers compete in Independent Events, which are competitions for specific theater divisions such as individual acting, technical theater, and/or musical theater. This year, I’ll be competing in the musical theater division in which I perform one song and am judged on my acting and performance. Since this is only a single performance, and this is not an open competition for audience viewing, I was wondering how I would request or receive the rights to compete with the song “Vanilla Ice Cream” from She Love Me. I just need confirmation that I have permission to perform with that song for the competition. If this is at all feasible, please let me know! Thank you!

Sincerely,

Faith Adams