歌"Uta",means song!

If you say "sing a song"in Japanese, you can say "Uta-u".
Then,"wanna sing a song" is "Utai-tai".

Dennis, Toma and Danny(left to right) they are our guests. We went to a"Karaoke Box".
Danny sang some japanese pops (like Japanese Anime songs)
He finely knows songs that even we don't know.