Not all bands have just one name over the length of their existence.
A lot of them started off with some pretty BIZARRE names, before settling on something better and eventually getting famous.
Here are a few examples:
The Red Hot Chili Peppers: Tony Flow and the Miraculously Majestic Masters of Mayhem
Van Halen: Rat Salad (It’s actually the title of a Black Sabbath song.)
Black Sabbath: Polka Tulk Blues Band
Green Day: Sweet Children
Pink Floyd: The Tea Set
Nirvana: Pen Cap Chew
David Bowie: Davy Jones (It’s his birth name.)