Following the throat microsurgery, she made her live comeback at the 2012 Grammy Awards in February. She won in all six categories for which she was nominated, including Album of the Year, Record of the Year, and Song of the Year, making her the second female artist in Grammy history, after Beyoncé, to win that many awards in a single night. Following that success, "21" achieved the biggest weekly sales increase following a Grammy win since Nielsen SoundScan began tracking data in 1991. Adele received the Brit Award for British Female Solo Artist, and British Album of the Year presented to her by George Michael. Following the Brit Awards, "21" reached number one for the 21st non-consecutive week in the UK. The album has sold over 4.5 million copies in the UK where it is the fourth best-selling album. In October, the album's sales surpassed 4.5 million in the UK, and in November it surpassed 10 million sales in the US. The best-selling album worldwide of 2011 and 2012, , the album has sold over 31 million copies. By the end of 2014, she had sold an estimated 40 million albums and 50 million singles worldwide. Adele is the only artist or band in the last decade in the US to earn an RIAA diamond certification for a one disc album in less than two years.