Spell your artist name the same across all your releases.
Make sure you spell everything correctly, so your fans can find you!
Don't format artist names as "Last name, First name".
Don't include any additional information in your artist name (i.e. role, date, instrument, former band, website, etc.).
Good examples:
Jack White
Frank Sinatra
John Lennon
Bad examples:
Jack White (Guitarist)
Frank Sinatra (1915-1998)
John Lennon (The Beatles)
Updated