Sunshine

There's a book character named Sunshine in The Haunting of Sunshine Girl series by Paige McKenzie.

Sunshine is the name of one of the characters from the short-lived TV-Series: TUGS.

“I’m walking on Sunshine! Woahaoao! It’s time to feel good, hey!”

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A song back in 1983 by Katrina and the Waves was titled “Walking on Sunshine”.

Sunshine Cruz is a Filipina actress and singer.

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Sunshine Dizon (born Margaret Sunshine Cansancio Dizon) is a Filipina actress.

This isn't really much of a famous bearer, but in the movie Harold and Maude one of Harold's potential girlfriends (as introduced to him through his overbearing mother) was a budding actress called Sunshine Doré - or, at least that was her in-universe stage name. Because of this, I can't really take this name seriously.
By the way, she was played by Ellen Geer. :)

Sunshine Anderson (born 1974), an American R&B singer.

Sunshine Quolye is a character in the novel "The Shipping News".

I will forever associate this "name" with the prostitute Sunshine on the Eddie Murphy & Richard Pryor movie "Harlem Nights."

Sunshine is a book by Robin McKinley. The heroine of the book is named Raven, and her nickname became Rae, which then became Sunshine. I love this book, and I think this is a beautiful name! What's wrong with Hippie names? They're better than ugly, overused names like Emily or Sarah. You could go by Sun or Sunny, or just plain Sunshine! It's lovely!

In Sherrilyn Kenyon's "Night Embrace" the heroine, Sunshine Runningwolf, is an artist who is part Native American and very forgetful.

Sunshine was the nickname of the main character, Homer Wells, in John Irving's novel "The Cider House Rules".

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In my opinion, it is a cute nickname but would be an embarassing first name.

Sunshine was the nickname given to a certain football player in Remember the Titans.