They are both Tillandsia. The one on the left is T. cyanea, a popular one at the big box stores. I don't know the species of the one on the right, but you might try posting this on the Bromeliad forum where the experts lurk.

Thanks Ricky.

Felix

It also looks like a Vriesea 'Mariae', but can't be sure without seeing foliage.

Ginny

Check the picture at this link.

Here is a link that might be useful: Bromeliads

Ginny........ya beat me to it ! :)