TTC chair Adam Giambrone is poised to announce his candidacy for mayor.

The tip-off came when the TTC chairman, whose candidacy has been a matter of speculation for several weeks, sent out invitations to a “night full of celebration and excitement” at Revival, a College St. nightclub, on Feb. 1.

“I can say there's been a lot of interest in my intentions for the 2010 municipal election,” Giambrone said in an email Sunday night, “and I've said I'll be announcing them in late January, which is fast approaching.

“I'm looking forward sharing my plans with Toronto in the next week or so, and participating in an exciting election. On February 1, I'll be gathering with some friends and supporters to celebrate Toronto.”

The invitations, sent to his supporters show a smiling, confident, election-ready Giambrone with his arms crossed.

The 32-year-old hasn’t officially declared his candidacy, but has hinted at a possible run.

After former mayoral candidate and provincial Progressive Conservative party leader John Tory announced he wasn’t running, an Angus Reid-Toronto Star poll put the TTC chair in second place at 17 per cent, behind George Smitherman at 44 per cent, and just ahead of Liberal party strategist Rocco Rossi at 15 per cent.