Britney Spears hopes to prove critics wrong with her recent tour but there's not much left to prove. "The Circus starring Britney Spears" is the biggest tour of her career and one of the biggest sellers of the year, selling out all of the dates in the U.S.

Now, she heads to Europe for a string of dates and, according to the Digital Spy, the "Womanizer" singer is telling Hello magazine that she's "not sad anymore."

Britney Spears was a bridesmaid for her cousin on Saturday. The "Womanizer" singer made a discreet appearance alongside her brother Bryan Spears at the wedding of Laura Lynne Covington, which was held at the First United Methodist Church in Amite, Louisiana.

A guest said: "When her brother walked her down the aisle, she looked stunningly calm and beautiful. She was very pretty, low-key. She was not the center of everything, just pretty and calm and collected."

Britney Spears' ex-bodyguard is suing her. In court documents filmed on Monday, Kerry Vine claims he was hurt while working at her former home in Los Angeles in March 2008.

The documents state: "Advanced Security Concepts negligently operated their business thereby causing injuries to Vine who worked for Spears at the time.

Britney Spears has spent a staggering $10 million since last February. The "Womanizer" singer, who has a reported $100 million fortune, earned $12 million last year but the majority of her money was used on staff, legal fees, her lavish lifestyle and caring for her two young sons.

Her finances were revealed in papers filed by lawyers for her father Jamie, who is legally in control of her estate.

Britney Spears spends hundreds of thousands of dollars on security, mortgages and phone bills and other expenses last year - in all the diva shelled out $10 million on a bevy of expenses according to a new document she filed with the Los Angeles Superior Court.

Spears paid over $285,000 in mortgage and another $49,387 in upgrades and repairs to her properties; over $6,000 in phone bills and over $1,800 on cable and satellite television. In April, Spears paid off a $711 phone bill to AT&T and holds accounts with four separate carriers.

Britney Spears wants to become a teacher. The "Womanizer" singer is growing increasingly frustrated living life in the constant media glare and would love a 'normal' career.

Her cousin Alli Sims said: "Britney would always say, "Maybe I just want to be a teacher. I just want to do something on a normal level. I've been something for so long.'"