Question: Han Seung-yeon and Leo, are singers of which nationality?

Context articles: Age of Youth 2
Han Seung-yeon
Miguel da Silva
Yi'an District
Palace lantern
Age of Youth
Leo (singer)
Han chauvinism
Come Sing with Me
Bidu Sayão International Vocal Competition

Age of Youth 2 () is a South Korean television series starring Han Ye-ri, Han Seung-yeon, Park Eun-bin, Ji Woo and Choi Ah-ra.
 It is the sequel to the 2016 drama "Age of Youth".
 The series premiered on August 25, 2017 and airs on cable network JTBC on Fridays and Saturdays at 23:00 (KST).
Han Seung-yeon (born July 24, 1988), better known mononymously as Seungyeon, is a South Korean singer and actress.
 She is best known as former main vocalist of the South Korean girl group Kara.
D. Miguel da Silva (c. 1480 - 1556) was a Portuguese nobleman, the second son of Diogo da Silva, 1st Count of Portalegre and of his wife Maria de Ayala, a Castilian noblewomen.
 Educated at the University of Paris, he was appointed by King Manuel I of Portugal as ambassador to Rome in 1514.
 He served on that post during the reigns of popes Leo X, Adrian VI and Clement VII.
 Both pope Leo X and Clement VII wanted to make him Cardinal, but were opposed by the Portuguese Crown.
 He was recalled to Lisbon in 1525 where he served as member of the Royal Council.
 Clement VII made him Bishop of Viseu in 1526 and Pope Paul III finally elevated him to cardinal in 1539, albeit "in pectore".
 Falling out of favour with King John III of Portugal, D. Miguel da Silva run away to Rome in 1540, where he was warmly welcomed to the Curia by Paul III.
 His statute as a Cardinal was revealed in 1541 and John III of Portugal promptly condemned him of treason and revoked his Portuguese nationality.
 He served as papal legate to Venice, Ancona and Bologne and was made Bishop of Massa Marittima.
Yi'an District () formerly Tongling County, is a district in Anhui province, China.
 It is under the administration of Tongling City.
 It is in the south of Anhui Province and lies on the southern bank of Yangtze River.
 The total area is 1113 km² .
 The population (Han nationality) is 716,300.
Palace lantern is one of the Han nationality traditional handicrafts, which is special in Chinese lantern.
 It was created in eastern Han dynasty, blossoming in Sui and Tang dynasties, with strong local characteristics.Palace lantern just as its name imply that it is the lamp which is used in the palace, mainly making from fine wood as the skeleton and decorating with spun silk and glass, and draws sorts of design of coloured drawing or pattern in surface of the lantern.
 It is famous for its elegant and full of palace style.
 Clue to the fact that it was used for the palace for a long term, apart from the lighting feature, it also deserve to elaborate adornment, in order to show the wealth and luxury of the emperor.
 Orthodox palace lantern generally has anise, hexagonal, four corners, the pattern of each face may be "Dragon and Phoenix Bringing Auspiciousness ", "live for a long time", and "Everything goes well", etc.
Age of Youth () is a South Korean television series starring Han Ye-ri, Han Seung-yeon, Park Eun-bin, Ryu Hwa-young and Park Hye-soo.
 It replaced "Mirror of the Witch" and aired on cable network JTBC on Fridays and Saturdays at 20:30 (KST) for 12 episodes from July 22 to August 27, 2016.
Jung Taek-woon (Hangul: 정택운 , born on November 10, 1990), better known by his stage name Leo (Hangul: 레오 ), is a South Korean singer, songwriter and musical theatre actor, signed under Jellyfish Entertainment.
 Known for his high-pitched, sharp, and clear vocals, Leo debuted as a member of the South Korean boy group VIXX in May 2012, and began his acting career in 2014 in the musical "Full House" as Lee Young-jae.
 In 2015 he began his songwriting career, and with VIXX member Ravi formed VIXX's first official sub-unit VIXX LR.
Han chauvinism is a term coined by Mao Zedong in 1956 to criticize ethnocentrism among the majority Han people of China.
 In his speech, titled "Ten Major Relations", Mao stated that "on the relationship between the Han nationality and the minority nationalities... we put the emphasis on opposing Han chauvinism".
 This anti-chauvinistic idea is part of the People's Republic of China's "zhonghua minzu" conception of China as a multi-ethnic nation, both historically and in the present, which includes not only the Han but also 55 ethnic minorities.
 This is expressed in the constitution of the People's Republic of China, which states that China is a "unitary [multiethnic] state created jointly by the people of all its nationalities" and that "it is necessary to combat big [ethnic group] chauvinism, mainly Han chauvinism, and to combat local [ethnic] national[ist] chauvinism".
Come Sing With Me () is a Chinese variety music show, and it is broadcast on Hunan Television.
 The host by Wang Han and singer Han Hong associate jointly hosted, which invites specialized renown singers and ordinary people like fans to chorus, every episodes approximately taken about 90 minutes to broadcast.
 The program first season have 11 episodes was released on 7 May 2016, and second season have 12 episodes was released on 29 April 2017.
 Mandopop folk singer Fei Yu-ching was associate jointly hosted the final episode of first season, while Han Hong had leave for attending the task on crafts.
 Come Sing With Me also notable as top 10 popular China TV shows of ranked No. 2 in the first half of year 2016.
The Bidu Sayão International Vocal Competition (Portuguese: Concurso Internacional de Canto Bidu Sayão) is a singing competition held at the city of Belo Horizonte in Brazil named after that country's most famous opera singer, Bidu Sayão.
 It is a competition open to singers of any nationality for up-and-coming young singers and as such has an age restriction.
 The competition is divided between male and female participants and is the most important vocal competition in Latin America.