Lady Gaga is one of the most sucessfull female artist in recent years. She sold millions of copies in US. With the new RIAA certification methodology that I now include streamings, Gaga has sold +90M singles and +20M albums. The Fame, for example, should be at 10X platinum status, just like Just Dance. Shallow at 5X platinum, Million Reasons 3X platinum, Perfect Illusion 1x Platinum and G.U.Y gold.