Redirect page when browsing Hype on Mac

When I start browsing the Hype on my Mac, the first time I try to open a page, this link opens in a new tab

http://fidelity.rotator.hadj7.adjug...ype.com/usercp.php&ajpopuptitle=Advertisement

which then redirects to a MacKeeper page.
http://mackeeperapp.zeobit.com/land...Definer=mzb_2314&installer=&trt=5&tid_ext=763


This needs to stop. Not only is the way this is acting very suspicious, but MacKeeper is considered useless, at best, and malware at worst.