As of November 30, 2015, Lady Gaga’s discography includes two diamond-certified digital singles.
Her “Poker Face” has been officially certified 10x platinum.
Under the terms of the RIAA’s digital singles program, the 10x platinum (or “diamond”) certification confirms a US unit total of at least 10 million. One unit is equal to one paid download or 100 streams.
Lady Gaga had previously entered diamond territory with “Bad Romance.” The smash hit reached 10x platinum status in May 2013. As of May 2015, it has been certified 11x platinum.