According to Variety magazine, 'Smile' is a classic majorly popularised by Jimmy Durante and Nat King Cole.
The musician had co-ordinated with the leaders from the World Health Orgsation (WHO) and other musicians to begin the show.
Lady Gaga started the show by asking viewers to put their wallets aside as the show wasn't a fundraiser and didn't ask for donations. The online concert was orgsed to express gratitude towards the frontline workers in the fight against COVID-19.
Terming the special show as the 'love letter to the world,' the pop star shared pictures and videos of other performers as well.
Over 70 artists and celebrities from across the globe had joined the WHO's initiative of the online concert to thank and celebrate the healthcare workers fighting the pandemic.
According to The Hollywood Reporter, the virtual concert raised over USD 127 million for the relief efforts of COVID-19.
Some of the artists that were a part of the show are Elton John, Lizzo, Jennifer Lopez, Taylor Swift, Madonna, Priyanka Chopra, Shah Rukh Khan, Celine Dion, and the Rolling Stone.
The show was hosted by the most popular hosts Jimmy Kimmel, Jimmy Fallon, and Stephen Colbert.
( With inputs from ANI )