I forgot to include MATM. That was big everywhere except for the US, but it still broke a record there for the fastest selling single or whatever.
Comparing LG5 to Blackout would be unfair but I doubt LG5 will see great success anyway. Let's see how her sixth and seventh albums perform commercially.
Britney was going multi-platinum 7 years into her career and was the world's most talked about popstar. Gaga is performing tributes and has a recurring role on a failing tv show. There is no comparison.