Video Transcription
Can you flex in one arm?
Let's go!
♪ And lift up a little, put your abs back ♪
It's okay. - Okay.
Put two hands behind your head like this, then contract a little.
Can you flex in one arm?
Let's go!
♪ And lift up a little, put your abs back ♪
It's okay. - Okay.
Put two hands behind your head like this, then contract a little.