Super Bowl Halftime Show 2012: Alex Rodriguez and Stars Who Shouldn't Tune in

All eyes will be on pop icon Madonna during halftime of the Super Bowl as she performs at Lucas Oil Stadium in Indianapolis. While many are certainly excited to see the "Material Girl" perform at the Super Bowl for the first time, others won't be so happy.

I'm not talking about kids who have no clue who Madonna even is, rather, those who have had some run-ins with her in the past. Madonna has had her fair share of relationships gone bad and public feuds, so it wouldn't be surprising if ratings are down a bit for the halftime show this year.

Here are three stars who shouldn't watch Madonna perform on Sunday evening.

Sean Penn

Madonna married actor Sean Penn way back in 1985 on her birthday. While the couple was seemingly happy at first, there were some behind-the-scenes issues that eventually led to their divorce in 1987. Madonna claimed that Penn had anger issues, as evidenced by his felony domestic assault charge, and that she was too focused on her booming career to make a marriage work at the time.

Perhaps the breakup was Penn's own fault as Madonna seemed to assert, but he couldn't have appreciated her damaging his reputation. You would like to think that both Madonna and Penn are bigger people than that and that they have long since moved on, but those in Hollywood tend to carry some grudges.

Elton John

Madonna and musical legend Elton John have had a bit of a catty relationship over the years, but it only continues to escalate thanks to John's partner David Furnish. Furnish blasted Madonna a few weeks ago after she beat out John for the Golden Globe for best song. Now, according to TMZ, he is claiming that he won't be watching Madonna's performance during the Super Bowl.

John seems to have gotten over his little bouts with Madonna, but Furnish clearly hasn't. Even if John actually wants to see what Madonna has in store for the Super Bowl, he is obligated to refrain from watching it. If Elton is caught watching the performance by Furnish, he'll never hear the end of it. The cardinal rule is to always stick by your spouse, whether they're right or wrong.

Alex Rodriguez

The New York Yankees slugger has been in his fair share of high-profile relationships with the likes of actresses Cameron Diaz and Kate Hudson, and he is currently dating former WWE Diva Torrie Wilson.

Perhaps his most famous and strange endeavor came in 2008 with Madonna. A-Rod and the Princess of Pop dated for an undetermined amount of time and formed a very interesting power couple.

Rodriguez goes through women like New York Jets head coach Rex Ryan goes through Snickers, so it's hard to say if there were any hard feelings or if the pair broke up amicably. There were whispers that Rodriguez only dated the then 50-year-old Madonna because he had the stature to do so, but I doubt Torrie wants him keeping tabs on his old flame on Sunday.