This early Popeye cartoon is not the normal fare for him. You know that when you first discover this is only two minutes long! After we see the sailor man exhibit his strength on-board a ship, as he sings, it turns into a sing-a-long for all of us.
"Sing along we me," Popeye exhorts and the screen turns black with the lyrics printed and, yes, we are to follow the bouncing ball.
"I'm Popeye The Sailor Man (toot) I'm Popeye The Sailor Man (toot) I Am What I Am And That's All What I Yam I'm Popeye The Sailor Man (toot, toot)"
We then get other verses which are unfamiliar but uninteresting. I don't know what the point of this was outside of introducing this cartoon character to audiences, although I am pretty sure Popeye cartoons began the year before in 1933.