The tenor is a type of male singing voice and is the highest male voice within the modal register. The typical tenor voice lies between C₃, the C one octave below middle C, to the A above middle C (A₄) in choral music, and up to tenor C (C₅) in solo work. The low extreme for tenors is roughly B♭2 (two B♭s below middle C). At the highest extreme, some tenors can sing up to two Fs above middle C (F₅).

The term tenor is also applied to instruments, such as the tenor saxophone, to indicate their range in relation to other instruments of the same group.

Within opera, the lowest note in the standard tenor repertoire is A₂ (Mime, Herod), but few roles fall below C₃. The high extreme: a few tenor roles in the standard repertoire call for a "tenor C" (C₅, one octave above middle C). Some (if not all) of the few top Cs in the standard operatic repertoire are either optional (such as in "Che gelida manina" in Puccini's La bohème) or interpolated (added) by tradition (such as in "Di quella pira" from Verdi's Il trovatore). Some operatic roles for tenor require a darker timbre and fewer high notes. In the leggero repertoire the highest note is an F₅ (Arturo in "Credeasi, misera" from Bellini's I puritani), therefore, very few tenors can have this role in their repertoire. A shift in pitch since the mid 19th century means that the few written top Cs (such as in "Salut demeure" from Gounod's Faust) would have in fact demanded a note at least a semitone lower than today's standard pitch.

Joseph Calleja, (born 22 January 1978), is a Maltese tenor. He began singing at the age of 16 and, having been discovered by Paul Asciak, continued his studies with him. At 19, he made his operatic debut as Macduff in Verdi's Macbeth at Astra Theatre in Gozo and went on to become a prize winner at the Belvedere Hans Gabor competition the same year. In 1998 he won the Caruso Competition in Milan and was a prize winner in Plácido Domingo's Operalia International Opera Competition in 1999. He has since been considered one of the most promising young tenors of the 21st century.

In Europe Calleja has performed in many Opera Houses including Royal Opera House in Covent Garden in London, the Vienna Staatsoper, Frankfurt Opera, Deutsche Oper Berlin, Opéra National du Rhin in Strasbourg, Teatre Principal in Majorca, Gran Teatre de Liceu in Barcelona and many more.

In the USA Calleja has performed at the Metropolitan Opera in New York, Houston Grand Opera, Los Angeles Opera, Seattle Opera, Washington National Opera, and the Civic Opera House in Chicago. Calleja has recorded two CDs of opera arias: Tenor Arias and The Golden Voice.

Juan Diego Cuauhtlatoatzin or Juan Diego (1474–May 30, 1548) was, according to Mexican Catholic tradition, an indigenous Mexican who reported a Marian apparition, Our Lady of Guadalupe, in 1531. The apparition has had a significant impact on the spread of the Catholic faith within Mexico. The Roman Catholic Church canonized him in 2002, as its first indigenous American saint.

The reality of Juan Diego's existence has been questioned by a number of experts on the early religious history of New Spain including Bernardino de Sahagun, Joaquin Garcia Icazbalceta, Stafford Poole, Louise Burkhart and David Brading, who argue that there is a complete lack of sources about Juan Diego's existence prior to the publication of the Nican Mopohua a century later, in 1649 (they do not accept the validity of the Codex Escalada as historical evidence). Notwithstanding these doubts, the findings of an interdisciplinary study, by nearly two dozen experts involving a prominent Mexican university and a noted American scholar of pre-Columbian Mesoamerican linguistics and anthropology, all indicated authenticity of the document and 16th century origin.

Céline Marie Claudette Dion, CC OQ, (French pronunciation: [selin djɔ̃] ( listen); born March 30, 1968), is a Canadian singer. Born to a large family from Charlemagne, Quebec, Dion emerged as a teen star in the French-speaking world after her manager and future husband René Angélil mortgaged his home to finance her first record. In 1990, she released the English-language album Unison, establishing herself as a viable pop artist in North America and other English-speaking areas of the world.

Dion had first gained international recognition in the 1980s by winning both the 1982 Yamaha World Popular Song Festival and the 1988 Eurovision Song Contest. Following a series of French albums in the early 1980s, she signed on to CBS Records Canada in 1986. During the 1990s, with the help of Angélil, she achieved worldwide fame after signing with Epic Records and releasing several English albums along with additional French albums, becoming one of the most successful artists in pop music history. However, in 1999 at the height of her success, Dion announced a hiatus from entertainment in order to start a family and spend time with her husband, who had been diagnosed with cancer. She returned to the top of pop music in 2002 and signed a three-year (later extended to almost five years) contract to perform nightly in a five-star theatrical show at the Colosseum at Caesars Palace, Paradise, Nevada.

David Howell Evans (born 8 August 1961), more widely known by his stage name The Edge (or just Edge), is a musician best known as the guitarist, backing vocalist, and keyboardist of the Irish rock band U2. A member of the group since its inception, he has recorded 12 studio albums with the band and has released one solo record. As a guitarist, The Edge has crafted a minimalistic and textural style of playing. His use of a rhythmic delay effect yields a distinctive ambient, chiming sound that has become a signature of U2's music.

The Edge was born in England to a Welsh family, but was raised in Ireland after moving there as an infant. In 1976, at Mount Temple Comprehensive School, he formed U2 with his fellow students and his older brother Dik. Inspired by the ethos of punk rock and its basic arrangements, the group began to write its own material. They eventually became one of the most popular acts in popular music, with successful albums such as 1987's The Joshua Tree and 1991's Achtung Baby. Over the years, The Edge has experimented with various guitar effects and introduced influences from several genres of music into his own style, including American roots music, industrial music, and alternative rock. With U2, The Edge has also played keyboards, co-produced their 1993 record Zooropa, and occasionally contributed lyrics. The Edge met his second and current wife, Morleigh Steinberg, through her collaborations with the band.