Lady Gaga performs at a Russian Wedding. Lady Gaga is reportedly friends with Vladimir Putin’s grand daughter. I am not certain if that is connected, but she sang at a Russian wedding. Click HERE for all of the details. Lady Gaga SHARE RELATED CONTENT Demi Lovato’s alleged drug dealer speaks on the overdose. Drake visits 11-year-old awaiting heart surgery. Emergency landing for Post malone! How much $ does Britney Spears have to give K-fed monthly? So, we think we know what Demi Lovato overdosed on. Ellen invites Demi Lovato to appear on her show post rehab.