Eat Mom's Breakfast
Toast, Jams, Milk of おいしい牛乳
さあて行くわあたし happy happy girl!
From the intro of a song (https://www.youtube.com/watch?v=KS2t7l89Lm0)
The English words are being sung in English.
I understand everything in the bolded sentence except the use of 〜て行く(or maybe it's some other construction I haven't recognised?)
Exactly why is the て there? The sentence would make sense if it was just さあ行くわ.