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"‘Cause I can’t come back home ‘til they’re singing La, la la la, la la la" Obviously he can't come back home till his band has made it.
The whole song he's asking her to wait for him, and she says "I can't wait through everything"
The song ends with "Now everybody's singing La." Symbolising that he's come home, because he couldn't come home until everyone was singing La.
"‘Cause I can’t come back home ‘til they’re singing La, la la la, la la la" Obviously he can't come back home till his band has made it.
The whole song he's asking her to wait for him, and she says "I can't wait through everything"
The song ends with "Now everybody's singing La." Symbolising that he's come home, because he couldn't come home until everyone was singing La.