Lady Gaga and Jennifer Lopezbr to Perform at Joe Biden’s Inauguration .br On January 14, the official Biden Inauguralbr Committee released the lineup for Joe Bidenbr and Kamala Harris' Inauguration Day.br Lady Gaga is set to sing thebr national anthem during the ceremony.br Jennifer Lopez is slated to putbr on a musical performance. .br Gaga took to Instagram to celebratebr the occasion, saying she was “deeply honored”br to celebrate the “historic inauguration.”.br I am deeply honored to be joiningbr @BidenInaugural on January 20 tobr sing the National Anthem and celebratebr the historic inauguration ofbr @JoeBiden and @KamalaHarris!, Lady Gaga, via Instagram.br Lopez also celebrated the announcement,br simply sharing three hearts and the hashtagbr #Inauguration2021 on her Twitter. .br Both Gaga and Lopez were vocal supportersbr of Biden during the 2020 presidential election season. .br Gaga did campaign work for Bidenbr and encouraged people to vote. .br Lopez and her husband, Alex Rodriguez,br officially endorsed Biden in October 2020.