Lorde says she has rediscovered her love for Lady Gaga in a series of tweets praising Mother Monster's 2009 performance of "Viva La Vida" as "one of the greatest moments ever." "I think Lady Gaga's Live Lounge from 2009 where she sang 'Poker Face' and 'Viva la Vida' is one of the greatest pop moments ever," the young pop star wrote on Saturday evening. "I remember watching that aged 12 or 13 and feeling totally blessed, like I had been given something very special