Taylor Swift is American and I was listening to her song named "You belong with me". You can hear the song on Taylor Swift's official YT channel.
In this song (from 0:48 to 0:52), she says:
That what you're looking for has been here the whole time (listen to it).
But she says the "time" as if it were "sam", the T is S.
I also checked some other sites for its lyrics but it is "time" which is being pronounced with an S.
I did not find anything but another question on this site.
Only the second answer seems to have explained it partially, I will quote it here:
I don't know for sure, but I'd guess that the [d] in fid'na comes from the [s] in fixing to, the way that the [z] in isn't, wasn't or business can turn into [d] in some accents before the following [n] sound. Something like [ˈfɪksɪntə] > [ˈfɪksnə] > [ˈfɪsnə] > [ˈfɪznə] > [ˈfɪdnə].
If the intermediate pronunciations [ˈfɪsnə] and [ˈfɪznə] exist, that would support my guess."
The answerer over there says [ˈfɪksɪntə] > [ˈfɪksnə] > [ˈfɪsnə] > [ˈfɪznə] > [ˈfɪdnə].
Do Americans sometimes pronounce the T as S?
Also hear "A thousand years" sung by Christina Perri (American)
At 1:48, she says: "standing in front of me" but the T in the front sounds to me like an S.