Team Iron Man for life.

Robert Downey Jr. will sometimes go weeks without posting on Instagram, but when he does post, he posts gold. The other day, Tom Hiddleston joined Instagram, and his first photo was of Loki on the set of Marvel's "Thor: Ragnarok," which comes out next year.

So RDJ took the opportunity to have a bit of fun with his fellow "Avengers" star, dragging Taylor Swift and Tony Stark into the joke:

Join me in welcoming the biggest T. Stark fan of them all to Instagram! @twhiddleston

A photo posted by Robert Downey Jr. (@robertdowneyjr) on

Oh, RDJ, we knew you were trouble when you walked into the MCU. And we love it. Swoki can probably handle the joke, too, since they've been hit with much worse in the two months since their relationship went public.

As far as we know, RDJ won't be in "Thor: Ragnarok," his Iron Man/T.S. will next be seen in "Spider-Man: Homecoming," which comes out July 7, 2017.

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