The discovery of Beyonce's lip-synching at Obama's presidential inauguration clearly hasn't affected her much. After a Super Bowl XLVII halftime performance that served as a mini Destiny's Child reunion, she's announced 'The Mrs. Carter Show' world tour, and it's also come to light that she will be performing at the 55th Annual Grammy Awards.

The four-month tour begins in Belgrade, Serbia on April 15th, with major stops including Holland, Italy, Ireland, France and Belgium. She's also scheduled to perform at the UK's O2 arena four times, and there are 21 North American dates. The final performance will be held at the Barclays Center in Brooklyn on August 5th. Peep the full list of dates here.

As mentioned, she'll also be making an appearance at the Grammys, joining the likes of Justin Timberlake, Alicia Keys, Frank Ocean and Prince. This was revealed in the latest commercial for the ceremony, which aired tonight. The awards air next Sunday.

Watch her Super Bowl performance and a preview for the 'The Mrs. Carter Show' below: