Lady Gaga has indeed performed the classic song "Smile," which was originally written by Charlie Chaplin for the 1936 film Modern Times, with lyrics added later by John Turner and Geoffrey Parsons. Lady Gaga's rendition of "Smile" is not part of her official discography, but she has performed it live on several occasions.

One notable performance was during the 2020 One World: Together At Home concert, which was a virtual event organized by Lady Gaga, Global Citizen, and the World Health Organization to support frontline workers during the COVID-19 pandemic. Her version of "Smile" was heartfelt and showcased her vocal abilities, delivering a message of hope and resilience.

While Lady Gaga has not released a studio version of "Smile," recordings of her live performance from the event can be found online, such as on Vidude and other video platforms.