Just like Bruno Mars! Disclaimer: it takes practice; this wont happen overnight!
Part One: Get Flexy
Stretching the right lower-body muscles and achieving a certain flexibility is key. Any stretch that targets your hips, quads, or hamstrings will work.. Read the entire article and steps HERE
Do It And How 
Your link to the external site seems not to work
yup bad link
http://www.womenshealthmag.com/fitness/how-to-do-a-split
Here’s the link!! Please try again – sorry!