"Glee" season 6 spoilers show Rachel and Blaine leaning on each other as they go back to McKinley High after going out into the world. "Real Housewives of Atlanta" cast NeNe Leakes is also returning for the final turn of the series.

Lea Michele posted a photo on her social media showing her sitting on a piano with Darren Criss. She also teased some "Glee" season 6 spoilers as whe wrote: "Singing a broadway classic with @DarrenCriss at #Glee today! #GleeSeason6."

Unfortunately, she didn't give further hint of what Broadway classic they will sing. However, TV Over Mind noted that Rachel Berry already sang "On My Own" from "Les Miserables."

"Since Michele dubbed the Broadway tune as "classic," does that mean we should eliminate any modern day musicals, such as 'Wicked?'" the website said in its "Glee" season 6 spoilers. "Perhaps Blaine and Rachel will sing 'Not While I'm Around' from 'Sweeney Todd,' or maybe the show's producers have found another Barbra Streisand song that Michele's alter-ego has yet to belt?"

Meanwhile, TV Guide revealed more "Glee" season 6 spoilers when it reported the return of NeNe Leaks who will be reprising her role as coach Roz Washington, Sue Sylvester's rival.

"Real Housewives of Atlanta" cast NeNe Leakes' character was first introduced in the third season as the coach of the synchronized swimming team of McKinley High. When Sue was fired, she later took on the job which caused tension between the two.

"In Season 5, Roz helped the cheerleading squad win first place at Nationals, and Principal Sue subsequently allowed Roz to keep her job," TV Guide said.

Accordingly, "Real Housewives of Atlanta" cast NeNe Leakes will appear in at least one episode for the last season of the series. Filming will start in October in time for the airing next year.

All the original cast will be returning for the final season of "Glee." NeNe Leaks will join Dianna Agron, Mark Salling, Jenna Ushkowitz, Max Adler and Jayma Mays will also be returning as guest stars.Gl