Betty是由美国女歌手TaylorSwift创作的一首歌曲，被收录在TaylorSwift于2020年7月24日发行的第八张录音室专辑《Folklore》，为其所属专辑中的第14首歌曲。
《Folklore》是一张突破Taylor固有风格的专辑，她的声音变得冷静而节制，不再有之前汹涌的控诉和骄傲的自信，多的是于无声处听惊雷的力量，她仿佛卸下了束缚和愤怒，转而陷入思索。隔离生活让Taylor在该专辑中变得比以往更加温柔，甚至有些忧伤，她重拾她拿手的风格，用简单的音乐形式将一个个故事娓娓道来。
You better watch out you better not cry
You better not pout I'm tellin' you why
Santa Claus is comin' to town
He's makin' a list and checkin' it twice
Gonna find out who's naughty an' nice
Santa Claus is comin' to town
He sees you when you're sleepin'
He knows when you're awake
He knows if you've been bad or good
So be good for goodness sake
You better watch out you better not cry
You better not pout I'm tellin' you why
Santa Claus is comin' to town
Say better watch out you better not cry
Better not pout I'm tellin' you why
Santa Claus is comin' to town
He's makin' a list an' checkin' it twice
Gonna find out who's naughty an' nice
Santa Claus is comin' to town
He sees you when you're sleepin'
He knows when you're awake
He knows if you've been bad or good
So be good for goodness sake
Oh you better watch out you better not cry
You better not pout I'm tellin' you why
Santa Claus is comin' to town
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