Just Dance
Poker Face
Paparazzi
Startstruck
Bad Romance
Alejandro
Born This Way
The Edge of Glory
Hair
You and I
Applause
Do What U Want

Christmas Tree (during xmas, malls are playing this)

As featured artist:
Videophone
Chillin
3-Way (The Golden Rule)




Edit 4:

The Star Spangled Banner (Lady Gaga Cover) (The best/2nd best cover of the National Anthem, will be remembered)
TIHTY ( The rape-awareness song that created a major buzz esp. during the Oscars, will be remembered)
Summerboys (every summer, they play this!)
The Lady is a Tramp (a jazz classic)

I think this is the final list.

pokerface is the only one

Classics is a strong word demi

WOW!!

I love my Mother Monster!

Don't forget her biggest classic of all, No Floods.

Especially Hair, her biggest hit

"Hair"

Her only classics are Poker Face, Bad Romance and maybe Born This Way.

There's like 2 on the list (and even that would be a bit of stretch)

I only spot 5 classics out of that list.

so Hair is classic but Telephone isn't?

cool

Her classics are Poker face, Just dance and Alejandro. Maybe Bad romance too

only the first two are remembered

Why are you trying to give monsters more of a bad name? Like...

Since when is Do What U Want a classic? Most people don't know it exists.

12
you forgot Perfect Illusion

Poker Face
Born This Way
Bad Romance
Paparazzi
The Edge of Glory

That's all.