Beyoncé’s “Renaissance” tour is in full swing and, while she’s filled stadiums across Europe with thousands of adoring fans, there have been a fair few celebrity sightings in the crowd, too. As well as being joined on stage by her 11-year-old daughter, Blue Ivy, her husband JAY-Z has been spotted supporting his girls, alongside Beyoncé’s mum, Tina, making the “Renaissance” tour a real family affair. Rumi and Sir, Beyoncé and JAY-Z’s 5-year-old twins, are yet to make an appearance, but…