She may not have been the voice of Seaon 10's American Idol, but Haley Reinhart, 20, who came in third last season behind winner Scotty McCreery and runner-up Lauren Alaina, is not only continuing her singing career, she's also tackling acting, debuting as a guest star on Tuesday night's 90210 on The CW.

Last week Reinhart returned to American Idol to sing "Free," a single from her new album, Listen Up! "I wanted to make sure that it had a lot of substance to it," Reinhart told E! Online about the new album. "I wanted it to touch on a lot of different genres and still have it be catchy pop undertones, but just definitely keep true to myself and what I'm doing and have it reach out to people. So everybody knows, 'She's not just wanting to sell out for the fame.'"

Reinhart may not want to sell out to fame, but that doesn't mean she's not destined for it. Her appearance on the 90210 episode, "Blue Ivy," not only involves her character singing "Free," but also demands that Reinhart call on her previous acting experience. "I've always loved acting," she said, reports USA Today. "I did a lot of theater and musicals, skits and improv. My mom wanted me to go into acting more than singing when she saw me onstage. Maybe someday."

Reinhart catches up to "someday" tonight on 90210's "Blue Ivy," airing at 8 p.m. on The CW. Her album, Listen Up! drops on May 22.

Watch Reinhart's American Idol performance of "Free" here:

You might also like:

VIDEO: Haley Reinhart Falters, Then Rocks 'American Idol'

VIDEO: 'American Idol' Eliminates Haley Reinhart

VIDEO: Steven Tyler Says Haley Reinhart 'Sings Sexy' On 'American Idol'

'American Idol' Names Its Top 24

VIDEO: Jacob Lusk Eliminated From 'American Idol'

Read more about: