How long is a normal kid's concert? We're taking our kids to see Hi-5...?

I'm just wondering how long we'll actually be at the concert since my girls are only 2 years old.

Caleb F:
2 hours or more

Kelsey P:
hour and a half to two hours.

Ali:
Our first one was almost 2 hours, but there was intermissions and what not , they are usually really entertained the whole time though so it goes by quickly.
Have fun!!!!!