Timberlake, in an announcement Tuesday, said Denters would join him on tour this summer, People magazine reported. Slated for release this year is an album she will write and record.

"In completely unpredicted news to all YouTubers and bloggers, we are proud to announce Esmee Denters has signed to Tennman Records," Timberlake said. "Esmee is the real deal and I cannot wait for the world to hear her."

Denters gained attention last summer by shooting and posting cover performances of Beyonce, Alanis Morrisette and Alicia Keys songs on her YouTube page.

"Words can't describe how amazing it is. I am so excited!" Denters says in a statement. "I have to thank YouTube and its viewers for giving me the opportunity to show the world my voice. I also have to thank Justin ... for believing in me and making my dreams come true."

Timberlake launched the Los Angeles-based Tennman Records in late May.