Lady Gaga is not in disimulation, she's not a fake, she's actually very sincere.
Lady GaGa- crazy-ass ENFP 7w6 sx/so.
You almost get it, she's actually 6w7 Sx/So. Cindy Lauper (a potential ENFP) is a 7w6 Sx/So, see the differences:
[youtube=1m98QJ_QXc4]Lady Gaga and Cyndi Lauper Interview on Good Morning America[/youtube]
If Cindy Lauper don't seem afraid at all, Lady Gaga is clearly nervose in her speech, more meek, talk faster, fearful to not be clear and understood and select carefully her words. At some moment, Cindy Lauper must be sort of maternal with her, rub down her hands, reasure her. Lady Gaga have hard time to be calm and to take enough time to resume respiration. Both women are hard worker, but Lady Gaga work even more harder, frequently at the point to fall ill she does'nt chill out easily and that really don't sound 7 at all. Lady Gaga is compliant, Cindy Lauper is assertive.
For her MBTI type, it have been discussed ever and there's a huge Se/Ni balance as a core process with her. I think she's INFJ. Not an NP in any case. Cindy Lauper is probably ENTP, I think.