He was known for his leading role as Eddie Duran in the Nickelodeon series Hollywood Heights,[2] and playing Nicholas Alamain in Days of our Lives.

[4] After graduating high school, Longo moved to Los Angeles, California, to pursue acting, where he also continued to study both theater and psychology.

The next year, he played Dave in the movie Ball Don't Lie, which stars Chris "Ludacris" Bridges and Nick Cannon.

That fall, Longo was in the highly anticipated movie Fame, a loosely based remake of the 1980 film of the same name.

In December 2009, Longo began his six episode guest appearance on the ABC Family television show Make It or Break It as gymnast Nicky Russo.

In 2010, Longo replaced Joe Jonas as Young Tommy Walker in the TV series Brothers & Sisters, alongside his Fame co-star Kay Panabaker.

[5] Longo also appeared in the independent movie High School, alongside Colin Hanks, Adrien Brody, and Michael Chiklis.

Longo starred alongside Toby Hemingway and Frances Fisher in the psychological thriller The Silent Thief, playing Mike Henderson.

That summer, Longo starred in the Nick at Nite drama series Hollywood Heights as superstar Eddie Duran.

[8] The same month, Longo traveled to his home state of Colorado to promote his next movie, Not Today, ahead of its release in theaters that spring.

Longo then continued to focus on his music, releasing "Electric" and later appearing on Kit Fysto's single "I'm Not Playing Games".

Longo starred opposite James Maslow in 48 Hours to Live (formerly called Wild for the Night) as Liam.