In first post i don' t see any facts especially about single sales, his personal estimations are closer to real numbers. She is no way over 100M records WW.
Some official sales.
US - absolutely biggest singles market (has more than half share of total WW singles market, Korea, Japan and UK are following single markets. But Japan and Korea markets are very local and even Gaga does't have very high sales there. BTW single in Japan is certified for 500+K sales.)
Rank - Sales - TITLE - Artist
10 - 3,476,000 - BORN THIS WAY - Lady GaGa
29 - 2,325,000 - THE EDGE OF GLORY - Lady GaGa
UK - biggest European singles market
14 - 13 - 625500 - Lady Gaga - Born This Way - 625500 - 19/02/11 - 3
27 - 25 - 479000 - Lady Gaga - Edge Of Glory - 479000 - 21/05/11 - 6
74 - 71 - 279900 - Lady Gaga - Judas - 279900 - 23/04/11 - 8
France
23 Lady Gaga -born this way ( 107 500 ventes)
87 Lady Gaga -the edge of glory (38 000 ventes)
PS. Judas wasn't near hit in France it ended outside top 100 YTD.