Top 10 Celebrity On-Again, Off-Again Couples

Jude Law and Sienna Miller

<p> <span class="sub-header">These celeb couples just can&#39;t make up their minds.</span></p>

Show-biz relationships can be tricky to maintain. And while we've seen no shortages of famous couples call it quits recently, there's always room for second chances. Recently Britney Spears' parents reunited. So did Beyonce's.

Click through the photo gallery to see 10 famous couples who just can't quit each other.

Do you believe in second chances when it comes to love?

1. Miley Cyrus and Liam Hemsworth
The Last Song co-stars began seeing each other in 2009, but broke it off in August 2010. The pair briefly reunited in Los Angeles the following month.rache

2. P!nk and Carey Hart
Married in 2006, the "So What" singer and the motocross star separated in February 2008. After getting back together in February 2010, P!nk announced that the pair were expecting their first child in November.

3. Heidi Montag and Spencer Pratt
These two Hills villains married twice--once in November 2008 in Mexico, and again April 2009 in California--but things went south when Montag filed for divorce on June 8, 2010. The pair reconciled and renewed their vows in November 2010.

4. Megan Fox and Brian Austin Green
These two lovebirds began dating in 2004. Though the two have taken breaks from each other, they made things official with a wedding in June 2010.

5. Leonardo DiCaprio and Bar Rafaeli
Leonardo DiCaprio and supermodel Bar Rafaeli love each other, but also love to play the field. No one ever knows the couple's next move.