5 Things You Need to Know Today: Feb. 10

1. What's on Obama's Spotify Playlist? If you guessed, "Let's Stay Together" by Al Green, you're hardly psychic; but you'd be correct. It's among the list of 24 tunes released on the President's Facebook page, although technically, they are songs selected by Obama's staffers, with a few Obama favorites in the mix. Anyway, for the record, here's the list:

• Keep Marchin' Raphael Saadiq
• Tonight's The Kind Of Night Noah And The Whale
• We Take Care Of Our Own Bruce Springsteen
• Keep Me In Mind Zac Brown Band
• The Weight Aretha Franklin
• Even Better Than The Real Thing U2
• The Best Thing About Me Is You Ricky Martin
• Home Dierks Bentley
• You Are The Best Thing Ray LaMontagne
• Got To Get You Into My Life - (Live) Earth Wind & Fire Experience f...
• Green Onions - Single/LP Version Booker T. & The MG's
• I Got You Wilco
• Keep On Pushing - Single Version The Impressions
• Love You I Do Performed by Jennifer Hudson/Dreamgirls
• No Nostalgia Ages and Ages
• Stand Up Sugarland
• Let's Stay Together Al Green
• This Darius Rucker
• We Used to Wait Arcade Fire
• You've Got The Love Florence + The Machine
• Your Smiling Face James Taylor
• Roll With The Changes REO Speedwagon
• Everyday America Sugarland
• Learn To Live Darius Rucker

2. How the Zebra Got Its Stripes: Scientists using sticky boards and an open field have determined it's likely zebra stripes evolved to avert horsefly bites. In a new report published in the Journal of Experimental Biology. It boils down to the way light is reflected from the white stripes of the zebra, which are much less attractive to flies than the darker stripes.  In the test, the researchers pitted white boards and dark boards against striped boards, finding that in every instance, the striped boards attracted the least number of flies.

3. Celluloid Diana: A new biopic on the secret love of Princess Diana's Life is ready for production, with a 2013 release, and now with actress Naomi Watts signed on to portray the beloved Lady Di. "Caught In Flight" will explore the last two years of Diana's life, and her rumored relationship with Hasnat Khan, a heart surgeon, rumored to be the true object of her desire.  Watts replaces actress Jessica Chastain, who was originally cast for the role.

4. #greattobeback: Arnold Schwarzenegger and Sylvester Stallone happen to be convalescing together at a California hospital. No, not in the geriatric ward, although they certainly could be at their ages. But Schwarzeneggar, 64, and Stallone, 65, claim to have been there, coincidentally, for shoulder surgeries. They also happen to be collaborating on a new action film, "The Tomb." Here's what Arnold wrote when he posted the photo on his whosay.com page:

"After all the action, stunts & physical abuse shooting The Expendables 2 and The Last Stand, it was time for a little tune up on my shoulder. Look who was coincidentally waiting in line behind me for his shoulder surgery. Now we're ready for another round of great times and action when we shoot The Tomb. #greattobeback"

5. Born Today: You share your fancy cake-eating anniversary with: opera maven Leontyne Price, (85); '70s soul singer Roberta Flack,  (75); and former political strategist turned GMA host George Stephanopoulos (51). Bonus: Enjoy "Where is the Love," our favorite Roberta Flack song, with a nod to Donny Hathaway, and Leontyne Price, singing "Aida" at the Met.