stiffed at this year’s Grammy Awards — but they got their creative juices flowing again at Tuesday night’s 2021 BET Hip-Hop Awards.Dynamic “WAP” duo Cardi, 28, and Megan, 26, dominated the star-studded night with a trio of top honors: Song of the Year, Best Collaboration and Best Hip-Hop Video.The triple trophy win represented a measure of awards show justice for one of the most influential singles of the year, which broke the record for “most-streamed song” in its first week of release with a