Background: Napalm Death are a British extreme metal band formed in Meriden, West Midlands, England, in 1981. While none of its original members remain in the group since December 1986, the lineup of vocalist Mark "Barney" Greenway, bassist Shane Embury, guitarist Mitch Harris and drummer Danny Herrera has remained consistent of the band's career since 1992's Utopia Banished, although, from 1989 to 2004, Napalm Death were a five-piece band after they added Jesse Pintado as the replacement of one-time guitarist Bill Steer; following Pintado's departure, the band reverted to a four-piece rather than replace him. Napalm Death are credited as pioneers of the grindcore genre by incorporating elements of crust punk and death metal, using a noise-filled sound that uses heavily distorted, down-tuned guitars, grinding overdrive bass, high speed tempo, blast beats, and vocals which consist of incomprehensible growls, or high-pitched shrieks, extremely short songs, fast tempos, and sociopolitical lyrics. The band's debut album Scum, released in 1987 by Earache Records, proved substantially influential throughout the global metal community.
Context: In April 2005, their next album The Code Is Red...Long Live the Code was released. It features guest appearances from Jeffrey Walker (Carcass), Jamey Jasta (Hatebreed vocalist) and Jello Biafra (formerly of Dead Kennedys, and Lard among many other bands). The album continued the band's progressive approach to their brutal brand of extreme metal, with their trademark grindcore sound retained. Also in 2005, Embury and Herrera joined the extreme metal band Anaal Nathrakh for one tour. Napalm Death finished recording their follow-up album titled Smear Campaign in June 2006, and it was released on 15 September 2006 to strong reviews from fans and critics alike. The main lyrical focus is criticism of the United States Government and other governments who are strongly religious. The album features a guest appearance by Anneke van Giersbergen, vocalist for the Dutch rock band The Gathering. There is a limited edition digipak version of Smear Campaign, which has two new songs, "Call That an Option?" and "Atheist Runt". They played a series of headline shows in support of the release including the Koko in Camden with Gutworm. In early 2006 Napalm Death headlined a tour with Kreator, A Perfect Murder, and Undying. On 27 August 2006, Jesse Pintado died in a hospital in the Netherlands due to liver failure, prompting Mitch Harris to express his sadness at the loss of someone he thought of as "a brother" on the band's official website. After the Smear Campaign tour, the band did a 2007 "World Domination Tour". Bassist Shane Embury is currently working on a project with Mick Kenney of Anaal Nathrakh, their work together will be released on FETO Records at the end of 2007. In November 2008, Napalm Death's fourteenth studio album, entitled Time Waits for No Slave, leaked onto the internet; it was officially released on 23 January 2009. Similar to Smear Campaign, Time Waits For No Slave also had a digipak version containing two extra songs ("Suppressed Hunger" and "Omnipresent Knife In Your Back").
Question: Are there any other interesting aspects about this article?
Answer: It features guest appearances from Jeffrey Walker (Carcass), Jamey Jasta (Hatebreed vocalist) and Jello Biafra (

Background: Christina Maria Aguilera (born December 18, 1980) is an American singer, songwriter, actress, reality show personality and television personality. Born in Staten Island, New York and raised in Rochester and Wexford, Pennsylvania, she appeared on the television series Star Search and The Mickey Mouse Club in her early years. After recording "Reflection", the theme for Disney's 1998 film Mulan, Aguilera signed with RCA Records. She rose to prominence with her 1999 self-titled debut album that spawned the US Billboard Hot 100 number-one singles "Genie in a Bottle", "What a Girl Wants", and "Come On Over Baby
Context: Aguilera's seventh studio album Lotus was released in November 2012. She described it as a "rebirth" of herself after the personal struggles she had overcome during the Bionic album era. The album has become her least commercially successful album so far. It peaked at number seven on the Billboard 200 and has sold 290,000 copies in the United States. The album was preceded by two singles, "Your Body" and "Just a Fool". During the promotion of Lotus in December 2012, Aguilera was temporarily replaced by Shakira for the fourth season of The Voice and returned for the fifth season in September 2013. While Aguilera's seventh studio album Lotus was commercially unsuccessful, she subsequently found her revitalized success through collaborations with other artists. She was featured on Pitbull's single "Feel This Moment" in January 2013, which peaked at number eight on the Billboard Hot 100 and was certified double platinum by the RIAA. She subsequently appeared on Mexican singer Alejandro Fernandez's cover of "Hoy Tengo Ganas de Ti", which earned a diamond certification in Mexico. Aguilera's duet of "Say Something" with A Great Big World, released in November 2013, was met with critical acclaim and commercial success, earning a six-time platinum certification from the RIAA and winning a Grammy Award for Best Pop Duo/Group Performance. Aguilera became engaged to Rutler in February 2014. She gave birth to their daughter, Summer Rain Rutler, in August 2014. For the sixth and seventh seasons of The Voice, Aguilera was respectively replaced by Shakira and Gwen Stefani, clarifying that she wanted to devote her time to her family. She subsequently returned as a coach for the eighth and tenth seasons; for the latter she won with her contestant Alisan Porter and became the first female coach to win the show. In April 2015, Aguilera played a recurring role as singer Jade St. John on the third season of ABC's musical drama series Nashville. In March 2016, Aguilera and Rutler were announced as executive producers for a new music-based game show, Tracks, to air on Spike TV. Aguilera recorded a song titled "Change", which was dedicated to the victims of the 2016 Orlando nightclub shooting as well as Christina Grimmie, who was fatally shot in Orlando the day before the nightclub shooting, in June 2016. The proceedings were donated to the National Compassion Fund to benefit the victims' families. She further recorded a disco song titled "Telepathy" featuring Nile Rodgers for the soundtrack of Netflix original series The Get Down in August 2016, contributed as a voice actress for The Emoji Movie, and was announced to had been cast for the upcoming film Zoe in May 2017.
Question: What did Christina do after 2012?
Answer:
Aguilera's seventh studio album Lotus was released in November 2012.