ON MONDAYS, Fun with Music Day, the sequence opens with Mickey Mouse playing an upright piano. Realizing he has an audience, he leaps up and addresses an unseen group of children:
Mickey: Hi, Mouseketeers!
Children: Hi, Mickey!
Mickey: Big doings this week - adventure, fun, music, cartoons, news - Everybody ready?
Children: Ready!
Mickey: Then on with the show!

FOR GUEST STAR ON TUESDAY, Mickey appeared once again playing the piano. This time, it's a grand, and he's nattily attired in a tuxedo.
Mickey: Hi, Mouseketeers!
Children: Hi, Mickey!
Mickey: Got guests comin' and everything. Everybody neat and pretty?
Children: Neat and pretty!
Mickey: Then, take it away!

WEDNESDAY finds Mickey dressed as the Sorcerer's Apprentice from Fantasia, riding onto the stage on a rambunctious flying carpet. It's interesting to note in the dialogue that follows that Mickey refers to the day as being Stunt Day, although it was actually Anything Can Happen Day.
Mickey: Whoa, boy! Whoa, steady! Hi, Mouseketeers!
Children: Hi, Mickey!
Mickey: Wednesday is Stunt Day, Mouseketeers, so hang on, anything goes! Ya ready?
Children: Ready!
Mickey: Then let the show begin!

FOR THURSDAY, Circus Day, Mickey is dressed in a band costume and plays the slide trombone. This is the shortest of the introduction scenes.

Mickey: Hi, Mouseketeers!
Children: Hi, Mickey!
Mickey: Well, today is, ah, oh, ah...
Children: Circus Day!
Mickey: Right! Okay, Mouseketeers, all together now... Children: On with the show!

ON FRIDAY, the final opening sequence is for Talent Round-up Day. Mickey appears dressed as a cowboy, twirling a lariat as he speaks to the audience.
Mickey: Yee-ee, Yee-ee! Hi, podners!
Mickey: This here's our roundup day, so you all pretty nigh ready?
Mickey: Sure enough!
Mickey: Let's get on with it!