Gaga will appear live on MTV to make a VMA announcement Thursday at 7:49 p.m. ET/PT. By Jocelyn Vena Lady Gaga It’s a big week for Lady Gaga . After announcing she’d be performing at the 2011 Video Music Awards on Sunday, August 28, promos for the big show featuring the Mother Monster herself were unveiled, giving fans a very candid, stripped-down take on her latest single, “Yo