This Taylor Swift photo contains
cocktail dress and sheath.
There might also be
dinner dress, dinner gown, formal, evening gown, nightwear, sleepwear, nightclothes, chemise, shimmy, shift, slip, and teddy.
Piano cover and tutorial for "Begin Again" by Taylor Swift from the "Kiss" album. This piano arrangement is made by Pianocrumbs and available online at:
link