Beyonce ended her six-concert stop at London's O2 Arena for her The Mrs Carter Show tour with a bang - she brought Blue Ivy out on stage for the show's fans to gush over.

One of Bey's fans posted a picture on her iPhone of the 15-month-old arriving on stage to meet her mother while wearing a dress and headphones. The toddler was seen sitting on the lap of Beyonce's bodyguard Julius prior to her stage debut.

Beyonce, who was wearing a stunning blue sparkle catsuit, grabbed her only child and sang a song, offering her daughter the mic but Blue Ivy seemed to have caught stage fright: she didn't say a word.

Blue Ivy was spotted in London wiht her parents earlier in the week. Lainey Gossip reported that Blue and her parents went to dinner with Gwyneth Paltrow and her family in London on April 28. An eyewitness saw the actress with her husband, Coldplay front man Chris Martin, their children Apple, 8, and Moses, 6, having dinner at Zuma restaurant with the Carter family. According to the onlooker, they met for an "early meal" that ended shortly after 8pm. There was "a lot of affection going around between" the Carters and Paltrow's clan, according to the source. Moses was seen "making jokes with (Jay-Z) at the table."

According to a report, Beyonce witnessed another case in London when she turned over the mic to Princess Eugenie to help her sing the chorus "to the left, to the left" from her previous hit single Irreplaceable. The royal family member either didn't know the words or was too embarrassed to sing along in front of the crowd.

Princess Eugenie, 23, who is the daughter of Prince Andrew and Sarah Ferguson, and sixth in line to the throne, attended Beyonce's concert with Kate Middleton's brother, James and his new girlfriend, Donna Air. British fashion designer Matthew Williamson and shoe designer Patrick Cox also went to see the multi-Grammy winner perform live.

Watch Beyonce bring Blue Ivy on stage in London's O2 Arena here