After weeks of being absent, both “Glee” and Charice were back at McKinley High on Tuesday.

Last seen in the season-two opener “Audition,” the 18-year-old guest star revived her role as the talented rival glee club member, Sunshine Corazon.

Wanting to prove that she wasn’t a spy for Vocal Adrenaline, that she was only there to contribute to New Directions’ upcoming benefit show, Sunshine took to the stage to sing the classic ballad about loneliness, “All By Myself.”

GMA News spoke with Charice about being back on Glee:

How many episodes of “Glee” are you doing? “I don’t know how many. But I am really excited to be back.”

How much has “Glee” really helped you in your career? ““Glee” is the best thing that has happened to me. It is the best reason why I am being recognized right now. People come up to me and say, “Oh, I saw you in ‘Glee.’” It has really helped me in my career and my life. I would like to thank them for having me on the show.”

Not only did Charice make her return to “Glee” last night, but you can now pick up her new song “One Day” on iTunes.

And did you know that Nick Jonas wrote and produced the song?

Charice has also teamed up with ACUVUE® Brand Contact Lenses to offer some lucky fans the chance to be in the video for “One Day.”

Now through May 23, 2011, fans can enter the “ACUVUE® 1•DAY Contest” at www.facebook.com/ACUVUE for their chance to win one of the grand prizes, have their photos featured in Charice’s video, or one of the prize packages (see rules)