Solutions *Doo-doo, doo-doo, doo-doo* "... Shark," hit children's song that has a repetitive and catchy syllable has 6 entries with similar clues

• 3-letter words
• ann*Ah Ba-ba-ba-ba* "Barbara ...," hit song covered by The Beach Boys that has a repetitive and catchy syllable
• now*Na na na* "Right ...," hit song by Akon that has a repetitive and catchy syllable
• hey*Na na na na-na-na-na* "... Jude," hit song by the Beatles that has a repetitive and catchy syllable
• 5-letter words
• brown*Tra la la la la* "... Girl in the Ring," hit song by Boney M. that has repetitive and catchy syllables
• 6-letter words
• sleeps*A-weema-weh, a-weema-weh* "The Lion ... Tonight," hit song used in a 1994 Disney movie that has repetitive and catchy syllables
• 7-letter words
• romance*Rah-rah, ah-ah-ah* "Bad ...," hit song by Lady Gaga that has a repetitive and catchy syllable