AOSC: This week's #1 artists by age
17 - 1994-11-24 - Reece Mastin
18 - 1993-05-16 - IU
19 - 1992-07-22 - Selena Gomez (Selena Gomez & The Scene)
22 - 1989-09-08 - Avicii
22 - 1989-05-03 - Selah Sue
23 - 1988-05-05 - Adele
23 - 1988-02-20 - Rihanna
25 - 1986-06-21 - Lana Del Rey
25 - 1986-03-18 - Lykke Li
25 - 1986-02-23 - Kazuya Kamenashi (KAT-TUN)
26 - 1985-11-29 - Junnosuke Taguchi (KAT-TUN)
26 - 1985-11-05 - Koki Tanaka (KAT-TUN)
26 - 1985-01-21 - Aura Dione
27 - 1984-01-17 - Calvin Harris
28 - 1983-10-04 - Tatsuya Ueda (KAT-TUN)
28 - 1983-09-04 - Yuichi Nakamaru (KAT-TUN)
28 - 1983-04-23 - Taio Cruz
30 - 1981-05-21 - Joey Clement (Selena Gomez & The Scene)
30 - 1981-05-12 - Gers Pardoel
30 - 1981-01-21 - Michel Telo
32 - 1979-09-17 - Flo Rida
33 - 1978-06-24 - Emppu Vuorinen (Nightwish)
33 - 1978-04-21 - Jukka Nevalainen (Nightwish)
34 - 1976-12-25 - Tuomas Holopainen (Nightwish)
39 - 1972-01-01 - Tom Barman
40 - 1971-06-21 - Anette Olzon (Nightwish)
43 - 1968-04-06 - Akos
45 - 1966-01-14 - Marco Hietala (Nightwish)
The following artists aren't included on the list because you can't determine the exact dates of their birthdays: Dane Forrest, Ethan Roberts, Greg Garman (all of Selena Gomez & the Scene), all members of the Subs and Imany.