IPod/iPhone app where you can put photos into a video and have music in background?

I had an app where you can play music in the background and you could also put photos into a video, anyone know what it's called, it's on all apple products like iPod touch, iPhone and iPad?

Go to photos, click on camera roll, tap a picture. Tap the little play button

I think it may be iPhoto or iMovie.

There's an app that puts pictures in a viedo and music in the background it is called flipagram