15& sure knows how to have fun!

On April 29th, Baek Ye Rin revealed the picture below as she tweeted, "I wonder what the end is for a kid like you. I'm very curious."

The picture shows her fellow member Park Ji Min posing with sweat pants raised all the way to her shoulders. The viewers couldn't help but laugh at Park Ji Min's serious expression coupled with her awkward stretch pose.

Fans responded, "She's good at entertaining herself," "This is how she has fun," "Park Ji Min's funny picture is cute," and "I like Park Ji Min's bubbly charms."

Meanwhile, the talented duo is receiving much love for "Somebody".