'Seinfeld' fans stunned by Jason Alexander's singing talent

A resurfaced performance by Jason Alexander has left Seinfeld fans doing a double take, with many expressing surprise after discovering the actor's impressive singing voice in a decades-old television appearance.

The viral clip, originally filmed during the 1991 Jerry Lewis MDA Labor Day Telethon, features Alexander performing the show tunes I Want to Sing a Show Tune and This Is the Moment. 

As the video spread across social media, viewers praised the actor's powerful vocals and stage presence, with many admitting they had no idea the sitcom star possessed such extensive musical talent.

Best known for portraying the neurotic George Costanza on the hit sitcom Seinfeld, Alexander built a successful career on television that, for many fans, overshadowed his earlier accomplishments on Broadway. 

According to People, the resurfaced performance has prompted renewed appreciation for his theater background, with social media users describing him as an "incredible performer" whose musical abilities deserve wider recognition.

Long before Seinfeld premiered in 1989, Alexander had already established himself as a respected stage actor. 

Moreover, he originated the role of Joe in Stephen Sondheim's Merrily We Roll Along in 1981, starred in The Rink in 1984 and earned the 1989 Tony Award for Best Actor in a Musical for Jerome Robbins' Broadway.

Although his television success made him a household name, the renewed attention surrounding the telethon performance has reminded audiences of the breadth of Alexander's talents.

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