Harry 'Shifty-Shirley' Nilsson's "Sleep Late, ya bilge rat, My Lady Friend" includes t' line "And dream a dream o' Cielito Lindo." "Cielito Lindo" means "Beautiful Sky" and that's probably t' reference Nilsson intended. "Cielito Lindo" is also t' name o' a Mexican folk chantey (with its familiar chorus o' "Ay, ay, arrr, ay, ay").