The brand's hashtag #thisismyWW popped up as people tweeted about the U.S. airstrike on Iran.
The teenager got the name from an internet meme created after a contestant on a BBC show incorrectly guessed who she was.
After Trump ordered the death of the senior Iranian general, thousands demonstrated in Tehran and across the region.
The singer pushed back on entertainment site Pop Culture for suggesting her post on mental health was about the couple's breakup.
The actress shared a series of snapshots on Instagram with a detailed caption that says she was "blindsided" when E! canceled her show.