Which Eagles song was their first top-ten hit outside North America?

One of These Nights was the Eagles' first top-ten hit outside North America. The title track came from the band's fourth studio album, released in 1975, and reached number one in the United States and Canada while also breaking into the top ten in overseas markets.

The song was written by Don Henley and Glenn Frey, with Henley singing lead vocal. Its sleek, more sophisticated sound marked a step beyond the country-rock character of the Eagles' early records. The album also produced the major singles “Lyin' Eyes” and “Take It to the Limit.”

A common mix-up is “Hotel California,” which became the Eagles' only UK top-ten single and their best-known international chart success. “Best of My Love” was earlier than “One of These Nights” and became the band's first US number-one single, but it did not reach the top ten outside North America. “One of These Nights” therefore holds the specific distinction asked about here.