Well, RedFlarezz owned my account once, since we're sisters. She got tired of me logging in as her, so she gave me the ZenDaya5678 account and created her new one, RedFlarezz.
She made up ZenDaya5678 because the diseny channel star, Zendaya Coleman. Aaand I'm stuck with the name now.
My sister came up with it in 2009, and I don't know where "banjo" or "2" came in. Neither of us like/play the banjo nor play Banjo Kazooie, and the account named "banjo2" came before "banjo1".