The two biggest stars of the past 4-5 years and both are said to be fads/fading or will fade, etc but WHO do you think will stay around longer?

Both

They both will be around for many years.

21 will carry Adele for at least 10+ years

Gaga will continue to release new music and stay relevant with her massive fanbase.

Nobody can predict the future, so who knows

I thought Rihanna has had more hits than Gaga in the last 5 years but yeah I guess Adele

LIES.

Gaga

Gaga.

I think Adele will be first to go. I only use 4 or 5 songs from 21 and like 4 from 19. The ones I do use are amazing but she just doesn't have staying power.

I firmly believe Gaga will fade away within her next two albums but if she plays her cards right, she'll be here to stay.

+1

I think both of them will be around for a good while yet.

Both.

Like it or not, Gaga's too big to just disappear and for everyone to just forget her. Adele will continue to be successful based on 21's impact alone.

There's room for both.

I agree, its probably 5-10years.

They've both sold over 20 million albums in the past 4-5 years. Who else is touching their success during that period?

Gaga will start becoming consistent with album sales I think.

Adele... Well let's see how her next album does.

.

Hasn't Rihanna sold 20M albums in the last 5 years?

ONE album can't keep you relevant 10-15 years down the line. :

Rihanna?