As of 2022, what was the rock band Foreigner's biggest hit to date?

A power musical ballad by the British-American rock band Foreigner was released in November 1984 titled "I Want to Know What Love Is". It was the lead single from their fifth studio album "Agent Provocateur". The song became a No. 1 hit in both the UK and the US and became the group's biggest hit to date.

"I Want to Know What Love Is" now remains one of the band's best-known songs, and is one of their most enduring radio hits, charting in the top 25 in 2000, 2001, and 2002 on the 'Billboard' Hot Adult Contemporary Recurrent chart. This is a song that has continued to garner critical acclaim, and is listed as one of 'Rolling Stone' magazine's greatest songs of all time at No. 479. The song has also been featured in a number of big screen motion pictures like "Larry the Cable Guy: Health Inspector" (2006), "Good Luck Chuck" (2007), "Alvin and the Chipmunks: The Squeakquel" (2009), and "Hot Tub Time Machine" (2010).

The song was written by Michael Leslie Jones, an English musician, singer, songwriter, and record producer. He is best known as the last remaining original member of the rock band Foreigner. Prior to Foreigner, he was in the band Spooky Tooth.