Sometimes the best pick-me-up is as simple as shuffling through your iPod until you land on just the right feel-good tune.

Well, the same can be said of shelter pets suffering from anxiety, thunderstorm phobias or even just a case of the abandonment blues.

To help boost their spirits, two women — one of them is a vet — have teamed up to start the non-profit Rescue Animal MP3 Project, which donates MP3 players loaded with mellow ditties to critter rescue orgs across the country.

One $50 donation covers the cost of one player, which can be equipped with everything from canine lullabies to Chopin for cats.