Will the elliptical work my butt?

I’ve been working out 4 to 5 times a week since I was 13, but back then I did hardly any cardio because I had practically no fat on my body. I’m now 17, so in addition to muscle building and toning I also do 30 minuets on the treadmill, because I can no longer eat whatever I want without it showing. I used to have a really high, tight, muscle butt but lately I’ve been noticing its starting to get kinda loose and flabby. I never use the elliptical because I always thought it was just for girls and for really overweight guys who couldn’t handle the treadmill. Lately however I’ve noticed some guys using the elliptical, and just the way the elliptical looks it seems like it would work your glutes pretty good. If I start using the elliptical in addition to treadmill (like maybe 2 days a week) will that help me get my butt back?

The eliptical will be great, but the recumbant cycle wil be amazing.