Members of "The Voice" crew are already bumping heads with the show's resident diva Christina Aguilera.

OK! Magazine reported that the singer is back to her old frolics now that filming for Season 10 has taken place. To recall, Food World News recently reported that Christina will Gwen Stefani during the show's upcoming new season!

The source revealed the show's staff is less than inspired about her return. "Christina is a nightmare," the insider said. Moreover, the source added that Aguilera is already making dramatic demands of the show's staff, much like she did during her previous season on the show.

International Design Times first revealed that the 34-year-old singer will play her role again as a coach on the talent's show premiere in February next year. She will be joining her follow judges Adam Levine, Blake Shelton and Pharrell Williams.

Colombian singer Shakira took the actress' spot when she was on leave. The songwriter took some time off when she welcomed her daughter Summer Rain with fiancé Matt Ruler in August 2014.

"The coaches on "The Voice" continue to bring incredible energy, unrivaled musical expertise and a want-to-win attitude that makes for the perfect ingredients of a two-time Emmy-winning show," Paul Telegdy, the president of late night and alternative programming at NBC Entertainment, said at that time. He even teased the show's followers by adding that they cannot wait what the forthcoming season "will bring."

Moreover, the pop singer has also revealed that she's been working on her newfangled album. As a matter of fact, E! Online shared that she lately appreared NBC's "Today" and opened up about her next LP.

"I've been loosely working and sort of accumulating ideas of what my next album will be over the last couple of years." Christina also said that it has been a while since she did a record and wanted her supporters to get something new from her.