RealAudio is a proprietary audio format developed by RealNetworks and first released in April 1995. It uses a variety of audio codecs, ranging from low-bitrate formats that can be used over dialup modems, to high-fidelity formats for music. It can also be used as a streaming audio format, that is played at the same time as it is downloaded. In the past, many internet radio stations used RealAudio to stream their programming over the internet in real time. In recent years, however, the format has become less common and has given way to more popular audio formats. RealAudio was heavily used by the BBC websites until 2009, though was it discontinued due to its declining use. BBC World Service, the last of the BBC websites to use RealAudio, discontinued its usage in March 2011.

RealAudio files were originally identified by a filename extension of .ra (for Real Audio). In 1997, RealNetworks also began offering a video format called RealVideo. The combination of the audio and video formats was called RealMedia and used the file extension .rm. However, the latest version of RealProducer, Real's flagship encoder, reverted to using .ra for audio-only files, and began using .rv for video files (with or without audio), and .rmvb for VBR video files. The .ram (Real Audio Metadata) and .smil (Synchronized Multimedia Integration Language) file formats are sometimes encountered as links from web pages (see Streaming Audio section below).

Miley Ray Cyrus (born Destiny Hope Cyrus; November 23, 1992) is an American actress and pop singer-songwriter. She achieved wide fame for her role as Miley Stewart/Hannah Montana on the Disney Channel sitcom Hannah Montana.

Cyrus recorded music for the soundtracks, Hannah Montana (2006) and Hannah Montana 2/Meet Miley Cyrus (2007), released by Walt Disney Records. With the success of the Hannah Montana franchise she established herself as a teen idol. In 2007, Cyrus signed to Hollywood Records to pursue a solo career. She embarked upon the Best of Both Worlds Tour the same year, in which she performed as both herself and in character as Hannah Montana. The tour was eventually turned into a high-grossing concert film titled Hannah Montana & Miley Cyrus: Best of Both Worlds Concert (2008). In July 2008, Cyrus released her first solo album, Breakout (2008), which was commercially successful.

She began her foray into film by providing the voice of "Penny" in the animated film Bolt (2008). Cyrus earned a nomination for the Golden Globe Award for Best Original Song for her performance of Bolt's theme song, "I Thought I Lost You". She also reprised her role as Miley Stewart/Hannah Montana in Hannah Montana: The Movie (2009). The Hannah Montana: The Movie' soundtrack introduced her to new audiences within country and adult contemporary markets.

Benjamin Hudson McIldowie (born 1979, Birmingham, England), known professionally as Mr Hudson, is an English R&B/pop artist based in London, England. Mr Hudson is signed to rapper and producer Kanye West's G.O.O.D. Music. He has listed various influences, most notably Chet Baker, David Bowie, The Police, Andre 3000, Marvin Gaye, Phoenix, The Specials, Billie Holiday, Rosster, Ella Fitzgerald and Dizzee Rascal.

Mr Hudson initially recorded with his band under the name Mr Hudson & The Library. Their first album, Tale of Two Cities, was released in 2007. The Library were Joy Joseph (Steel Pan, backing vocals, percussion), Torville Jones (piano), Maps Huxley (AKA Robin French, bass guitar) and Andrew "Wilkie" Wilkinson (drums). They were known for their energetic live performances and were nominated for "Best Newcomer" at the 2007 UK Festival Awards.

As a solo artist, Mr Hudson has worked with acts such as Kanye West, Dizzee Rascal, N-Dubz, KiD CuDi, Tinie Tempah, Jay-Z, Big Sean and Caspa, and also toured with Calvin Harris. His vocal performances have been compared to those of Sting. He is now accompanied by Joy Joseph (vocals and steel drum), Rob Barron (electric keyboard), Raphael Mann (bass guitar) and Andrew "Wilkie" Wilkinson (electric drums).