He said he was contacted by a number of people who suggested he run.
A lot of people had said they were not going to vote because there was no one they wanted to vote for, Lush said.
He confirmed he would continue as a host on Newstalk ZB.
"I'll keep doing it. I think that's really valuable."
Lush urged others who were keen on local politics to "get involved".
"The more the merrier," he said.
Lush earned 7371 votes when he won a by-election for a spot on the Invercargill Council during his first step into politics last year.
He grew up in Auckland but has lived in Bluff for the last 20 years with his partner Vanessa and their two sons Denver and Tracker.