- - Elton John and Lady Gaga, for two
- - Ben Kingsley, Whoopi Goldberg and Bono, eg
- - John Wayne and Lady Gaga
- - Lady Gaga and Katy Perry, e.g
- - Lady Gaga and Jay-Z
- - Ethel Merman and Jack Benny, e.g.
- - George Burns and Sting
- - some actors assume them
- - Actors' pseudonyms
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