Google Play offers a selection of MP3 downloads for free, as listed below. Each is a buck under the price that iTunes charges. The deals:

• Rihanna's We found Love (pictured)
• Nirvana's "Lithium"
• Drake's "Hold On We're Going Home"
• Lorde's "Royals"
• Luke Bryan's "Crash My Party"
• Katy Perry's "Teenage Dream"
• Daft Punk's "One More Time"
• Jason Aldean's "My Kinda Party"