Sunny Skylar (October 11, 1913 – February 2, 2009) was an American music composer, singer, lyricist, and music publisher, often recognized as one of the most prominent songwriters of the Tin Pan Alley era. Sunny Skylar had written over 300 songs according to ASCAP, and was inducted into the Songwriter's Hall of Fame in 2010.

His compositions have been performed and recorded by countless timeless acts such as Frank Sinatra, Dean Martin, Ella Fitzgerald, Nat King Cole, The Beatles, Tony Bennett, Louis Armstrong, Bing Crosby, and Benny Goodman. He may be best remembered for adapting English lyrics to popular songs like "Bésame Mucho" and "Amor", as well as his original compositions such as "Don't Wait Too Long", "Gotta Be This or That", "Waitin' For The Train to Come In", "You're Breaking My Heart", "Hair of Gold, Eyes of Blue", "A Little Bit South of North Carolina", and many more. Included in the Great American Songbook and The Real Book, many of Sunny Skylar's songs have remained jazz standards.

Sunny Skylar was born Selig Sidney Shaftel in Brooklyn, New York on October 11, 1913. His father, Jack, was born in Russia and immigrated to the United States around the age of 10, while his mother, Sarah, was born in the state of New York, both in the 1880s. Jack and Sarah Shaftel occasionally performed a song and dance act in vaudeville shows. Sunny was one of four children and grew up with his family in Brooklyn, New York.

Sunny Skylar began his professional singing career at the age of 18, with the Harold Stern band at a resort known as "Manhattan Beach" in 1932, after his friends jokingly pushed him on the bandstand and encouraged him to sing. After numerous requests and encores, the crowd and band enjoyed his singing enough to hire Skylar that day as the new resident vocalist for at Manhattan Beach. Classified as a baritone, by 1938, he was the featured singer in the orchestras of Vincent Lopez and Paul Whiteman, and soon appeared with a number of big bands, including those led by Ben Bernie, Jack Denny, Freddie Perren, Abe Lyman, George Hall, Ben Marden, Henry "Hank" Sylvern, Carl Hoff, Henry King, Adrian Rollini, and the CBS House Orchestra, under the name Sonny Schuyler (pronounced: "Skylar"). It was band leader, Vincent Lopez, who changed the singer's professional name from Sonny Schuyler to Sunny Skylar, based in his strong belief in numerology in 1940. Lopez believed that the reduced number of letters was an omen of good fortune. Only a few months later, the newly named, Sunny Skylar, had his first chart-topping hit song.

In 1942, after entertaining for five years with Vincent Lopez and His Hotel Taft Orchestra, Skylar embarked on a singing career in entertainment that was not tied to just one orchestra or bandleader. Instead, he entertained as a vocalist, mostly performing his own popular tunes as a headliner at music venues in New York City, such as the Latin Quarter, Montreal, El Morocco, and La Martinique. With a growing demand for top performers in the newly developing Las Vegas Strip, Skylar secured residencies at hotels such as The Flamingo, El Rancho, El Cortez, and The Dunes, among others. In August 1949, Sunny Skylar was a featured entertainer on The Ed Sullivan Show, performing a four-minute medley of some of his biggest songs on live television. He continued to perform in nightclubs and theaters until 1952, when he retired from singing, at the end of the big band era.

Though Skylar had many of his singing performances with big bands pressed onto records throughout his career, it was his songwriting that would become his legacy. Skylar began as a songwriter in New York City's Tin Pan Alley, which is said to be the birthplace of pop music in the United States. Like many up-and-coming songwriters of the time, he was writing and refining songs for other composers, oftentimes not receiving credit for his work until he could prove himself as a consistent hit songwriter.

One of his first notable hit songs, "Don't Cry", was performed by Skylar with Vincent Lopez & His Suave String Orchestra for Soundies on June 31, 1940, displayed on the Mills Panoram Jukebox. His next hit song also came about in 1940, when during a live performance, Sunny observed Vincent Lopez overworking his orchestra, and spontaneously created the humorous lyrics which became known as "Fifteen Minute Intermission". He graduated to even greater popularity with his song "Just A Little Bit South of North Carolina" in 1941. His next two hits, "Move It Over" and "Paper Troopers", were written as wartime anthems for the United States Armed Forces during World War II, both released in 1943.

One of Sunny Skylar's most well-known song credits is "Bésame Mucho", which was originally written by the famed Mexican songwriter Consuelo Velázquez. Skylar discovered the song while at the La Martinique club in New York City. He noticed that people kept coming up to the bandleader requesting the same song every few minutes. He became really fond of the song and wrote his version of English lyrics to the melody. A common practice during the Big Band Era was to adapt lyrics for audiences around the world. The English version of "Bésame Mucho" was first released in 1944 by Jimmy Dorsey & His Orchestra. The song became and instant hit and has been covered countless times since its release. "Bésame Mucho" has been said to be one of the most popular songs of the 20th century. In 1999, it was recognized as the most recorded and covered song in of all time. "Bésame Mucho" was even the song recorded by The Beatles on their demo that they used for a chance at a record deal with Decca Records on January 1, 1962. Compared to the original Spanish lyrics by Velázquez published in 1941, Skylar's 1944 English version has been criticized for its overly romantic theme, as it is not a true Spanish to English translation. Skylar continued adapting English lyrics to songs and made two more hits, "Amor" (originally by Gabriel Ruiz) and "Be Mine Tonight (Noche De Ronda)" through the end of the 1940s.