She has also appeared with Woody Herman, George Shearing, Gerry Mulligan, Peggy Lee, Joe Pass, Cleo Laine, Louis Bellson, Pete Rugolo, Bill Watrous, k.d.

lang, Take 6, Milcho Leviev, Jon Hendricks, Annie Ross, Bob Dorough, Eartha Kitt and been a member of The Tonight Show All-Stars, The Woody Herman Thundering Herd, the Benny Carter Quintet, and the Bob Cooper Quartet.

[3] Leitham has performed as a featured artist or group member at major jazz festivals in North America and internationally.

She has appeared with her trio at some of the finest venues in the world, including the Blue Note, Iridium, Smalls, and Dizzy's Club Coca-Cola in New York, The Toronto Pride Fest, also festivals in France and The Netherlands, Hungary and Japan, Mammoth Lakes and Sweet and Hot Jazz Festivals in California, Blues Alley in Washington, DC, Catalina's, Blue Whale, The Jazz Bakery, The Lighthouse, Donte's.

Carmello's, Alphonse's, and Cafe 322 in Los Angeles, Shanghai Jazz, the Deer Head Inn in the Delaware Water Gap and a host of others.