Taylor Swift Returns to Instagram to Praise Selena Gomez's New Song 'Fetish'

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Best friends forever!

Taylor Swift returned to Instagram on Thursday, after going radio silent for months, to support her best friend, Selena Gomez.

WATCH: Selena Gomez Releases Her Most Sexual Song Yet, ‘Fetish’: Watch the Steamy Video!

“Sultry pop magic from this dreamy almost-birthday-girl,” she captioned a post, alongside a photo of Gomez’s recent cover art for her new single, “Fetish.”

Gomez debuted her sexy new single on Thursday, which she co-wrote, after teasing the new track for weeks. The song, featuring rapper Gucci Mane, is the second single Gomez has put out since debuting “Bad Liar” in June.

RELATED: Selena Gomez Fans Say Taylor Swift Ever-So-Subtly Appears in 'Bad Liar' Video -- Spot the Clues!

During a radio interview last month, Gomez revealed that “Bad Liar” is her “favorite song I’ve ever done, for sure."

"The funny thing is I was very single when we were working on the song, but it was that feeling that I was missing. I’m very obvious when I have feelings for someone and we were talking about that feeling," Gomez said.

For more from Gomez’s new music, watch the video below!

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