See Debbie Reynolds' best musical number ever

It can't have been easy to tap between dance greats Gene Kelly and Donald O'Connor, but Debbie Reynolds made the task look effortless in the song Good Morning from Singin' in the Rain.

In a scene from the classic 1952 musical, Reynolds, who died Wednesday at age 84, dances in the kitchen, jumps on an ottoman, leaps onto a bench, skips down the stairs and – most impressively – speedily taps alongside two of the most athletic dancers of their time.

Singin' in the Rain was ranked by the American Film Institute as the greatest movie musical of all time – and Good Morning is Reynolds' best dance performance onscreen.

Appreciation: Debbie Reynolds, unsinkable to the end

One would never guess it from the joyous movie clip, but Reynolds struggled to film the Good Morning sequence, as she had no dance training before playing Kathy Selden at age 19. "The two hardest things I ever did in my life are childbirth and Singin' in the Rain," Reynolds famously said years after the film came out.

"Gene Kelly was hard on me, but I think he had to be. I had to learn everything in three to six months," she later told the Associated Press. "Donald O'Connor had been dancing since he was three months old, Gene Kelly since he was two years old."

The hard work clearly paid off. Fans (many of them famous) of the Hollywood icon tweeted about Singin' in the Rain after learning that Reynolds had passed away.

Contributing: Associated Press