*The following post is sponsored by Xfinity but all opinions are my own. My kids love the movie Sing and we’re excited to see the sequel when it comes out at the end of this month. There are so many big celebrities doing the voices in this one – it’s going to be so cute and probably very entertaining for parents too. To celebrate the new movie, Xfinity (which is the TV and internet service provider that we use in our home) is offering a slew of fun perks if you join the new Xfinity Rewards program. It’s free to…