Alison Krauss and Robert Plant are two of music's biggest legends, each with successful careers on their own. However, the two also collaborated on a Grammy-winning album, "Raising Sand," which led to rumors about a possible romantic relationship between the two.

Krauss and Plant first met in 2004 when they were both asked to participate in a tribute to Lead Belly at the Rock and Roll Hall of Fame. The two struck up a friendship and eventually decided to collaborate on an album together. "Raising Sand" was released in 2007 and was a critical and commercial success, winning five Grammy Awards.

Despite both Krauss and Plant denying any romantic involvement, rumors persisted that the two were more than just friends. The way they looked at each other while performing and the chemistry between them on stage only added fuel to the fire. However, there has never been any concrete evidence to suggest that the rumors were true.

It appears that Krauss and Plant truly were just friends and collaborators. In a 2008 interview with the Daily Telegraph, Plant spoke about the rumors and said, "We're both happily married, and we're not lovers. We just enjoy each other's company." Krauss has also confirmed that the two are not romantically involved.

Regardless of whether or not there was a romantic relationship between Krauss and Plant, their collaboration on "Raising Sand" remains a landmark in both of their careers. The album showcased their musical prowess and proved that two artists from different genres could come together to create something amazing.

In the end, the rumors about Alison Krauss and Robert Plant's relationship were just that鈥攔umors. While their collaboration may have sparked speculation about a romantic involvement, it is clear that the two were and remain close friends and colleagues. Their work together on "Raising Sand" will continue to be celebrated for years to come.