Article continues below advertisementJustin Trudeau's son, Xavier James Trudeau, is opening up about his connection with his dad's new girlfriend, Katy Perry."She's cool, she's nice. We talked for hours about my music. She gave me advice and next steps for me and stuff," Xavier said on the "Now Toronto" podcast.Article continues below advertisementSource: @nowtoronto/XXavier Trudeau said Katy Perry is 'cool' and 'nice.'Article continues below advertisementHe also shared that he recently attended Drake's son's birthday party, where the rapper offered him some music advice.