Before Demi Lovato and Naya Rivera play love interests on "Glee," fans are getting to hear what they sound like together on their duet of the Beatles classic "Here Comes the Sun."

Their version, which hit the Internet this week, has the two ladies singing in perfect harmony over a plucky guitar. Written by George Harrison, the track first was included on the Beatles' 1969 album, Abbey Road.

Naya first broke the news to MTV News last month that [article id="1713131"]Demi had signed on to play her love interest[/article]. [article id="1713638"]She's slated to play NYC artist Dani[/article] during a multi-episode arc beginning on one of the first two episodes.

"[Naya Rivera and I] had an awesome time working together," Lovato told MTV News earlier this month. "She's such a badass; I love her. And I've been friends with a lot of the people from the cast beforehand, so I feel right at home."

"Here Comes The Sun" is one of the [article id="1713949"]14 Beatles tracks[/article] that will be covered during the first two episodes of "Glee." Other songs include "Help," "A Hard Day's Night," "All You Need Is Love," "Sgt. Pepper's Lonely Hearts Club Band," "Hey Jude" and "Let It Be."

In addition to the Demi/Naya version of "Here Comes the Sun," Lea Michele's cover of "Yesterday" has also been released early. The legendary Beatles track originally appeared on the band's 1965 album, Help!.

"Glee" will [article id="1712413"]pay tribute to late star, Cory Monteith[/article], Michele's real-life and on-screen boyfriend, once the first two Beatles-themed episodes wrap up during the show's third episode on October 10.