Information:  - The tongue is a muscular organ in the mouth of most vertebrates that manipulates food for mastication, and is used in the act of swallowing. It is of importance in the digestive system and is the primary organ of taste in the gustatory system. The tongue's upper surface (dorsum) is covered in taste buds housed in numerous lingual papillae. It is sensitive and kept moist by saliva, and is richly supplied with nerves and blood vessels. The tongue also serves as a natural means of cleaning the teeth. A major function of the tongue is the enabling of speech in humans and vocalization in other animals.  - Beatboxing (also beat boxing or b-boxing) is a form of vocal percussion primarily involving the art of mimicking drum machines using one's mouth, lips, tongue, and voice. It may also involve vocal imitation of turntablism, and other musical instruments. Beatboxing today is connected with hip-hop culture, often referred to as "the fifth element" of hip-hop, although it is not limited to hip-hop music. The term "beatboxing" is sometimes used to refer to vocal percussion in general.  - Douglas E. Davis (born September 17, 1966), better known by the stage name Doug E. Fresh, is a Barbadian born American rapper, record producer, and beatboxer, also known as the Human Beat Box. The pioneer of 20th-century American beatboxing, Fresh is able to accurately imitate drum machines and various special effects using only his mouth, lips, gums, throat, tongue and a microphone.  - Constantine James Maroulis (born September 17, 1975) is an American actor and rock singer from Wyckoff, New Jersey. He was the sixth-place finalist on the fourth season of the reality television series "American Idol", and received a nomination for the Tony Award for Best Performance by a Leading Actor in a Musical for his role in "Rock of Ages". He starred in the title role in "Jekyll and Hyde" on Broadway, for which he received a Drama League Award Nomination for a Distinguished Performance Award.  - A drum machine is an electronic musical instrument designed to imitate the sound of drums, cymbals, other percussion instruments, and often basslines. Drum machines are most commonly associated with electronic music genres such as house music, but are also used in many other genres.   - American Idol is an American singing competition television series created by Simon Fuller, produced by FremantleMedia North America and 19 Entertainment, and distributed by FremantleMedia North America. It began airing on Fox on June 11, 2002, and ended on April 7, 2016. It started off as an addition to the "Idols" format based on the British series "Pop Idol", and became one of the most successful shows in the history of American television. The concept of the series involves discovering recording stars from unsigned singing talents, with the winner determined by the viewers in America through telephones, Internet, and SMS text voting. Winners chosen by viewers in its fifteen seasons were Kelly Clarkson, Ruben Studdard, Fantasia Barrino, Carrie Underwood, Taylor Hicks, Jordin Sparks, David Cook, Kris Allen, Lee DeWyze, Scotty McCreery, Phillip Phillips, Candice Glover, Caleb Johnson, Nick Fradiani, and Trent Harmon.  - David Homyk ( born in Canada ) is an American singer - songwriter and record producer . His music can be described as a blend of Maroon 5 and James Blunt . A producer by trade , David has made recordings for many well - known artists , including Beyoncé Knowles and her sister Solange . He tours and performs regularly , having shared stages with artists ranging from American Idol 's Constantine Maroulis to the hip - hop legend & Hall of Fame inductee , Doug E. Fresh . David 's debut album is called True Story . . On June 27 , 2013 AOL hired David as its first live anchor . He was given the job upon singing the morning news .  - Maroon 5 is an American pop rock band that originated in Los Angeles, California. It currently consists of lead vocalist Adam Levine, lead guitarist James Valentine, keyboardist and rhythm guitarist Jesse Carmichael, bassist Mickey Madden, drummer Matt Flynn, and keyboardist PJ Morton. Before the current group was established, the original four members, Adam Levine (lead vocals, lead guitar), Jesse Carmichael (rhythm guitar, backing vocals), Mickey Madden (bass guitar) and Ryan Dusick (drums), formed a band known as Kara's Flowers in 1994, while they were still in high school. The band, which self-released an album called "We Like Digging?", then signed to Reprise Records and released the album "The Fourth World" in 1997. After the album garnered a tepid response, the band parted ways with the record label and the members attended college.    Given the information above, choose from the list below the object entity that exhibits the relation 'instrument' with the subject 'david homyk'.  Choices: - drum  - guitar  - organ  - rhythm guitar  - singing
Answer:
guitar