Carrie Underwood looked beautiful as she performed at the Grand Ole Opry in honor of the late Little Jimmy Dickens on Thursday.

The 31-year-old, who’s expecting her first child with husband Mike Fisher, wore a long-sleeved black ruched dress and patterned black and white scarf to the memorial service at Nashville’s famed music hall. Underwood performed a duet of “Go Rest High on That Mountain” with Vince Gill.

Little Jimmy Dickens, the longest-performing Opry member, was hospitalized on Dec. 25 after suffering a stroke. He went into cardiac arrest and died on Jan. 2 at age 94.