Interesting the pop bands name is Seventeen.

They are from Indonesia, and have been around since 1999.

More than 220 dead as tsunami strikes Indonesia: Giant wave wipes out pop concert killing two band members as hundreds are injured and villages destroyed after Krakatoa volcano erupts

Indonesia's Disaster Mitigation Agency said at least 220 people have been confirmed killed in the tsunami

800 more people have been injured after the wave hit beaches around the Sunda Strait and 30 are missing

It is believed the wave was caused by seismic activity from the volcanic eruption on nearby Krakatoa

Pilots operating in the region have been warned about a volcanic ash cloud spreading from the eruption site

Boy band Seventeen were performing when the tsunami struck killing two members and two crew

Lead singer Riefian 'Ifan' Fajarsyah survived and the band's drummer is missing along with a member's wife

At least 220 people have been killed and 800 injured after a tsunami struck beaches in Indonesia overnight.

A further 30 people are still missing after a volcanic eruption caused a deadly wave to crash over a pop concert where band Seventeen were playing on Saturday evening, sending people fleeing for their lives. Two members of the band have been confirmed dead, along with the road manager and a crew member while the drummer is missing.

The 20 foot high wave hit beaches around the Sunda Strait, between the islands of Java and Sumatra at about 9.30pm local time, destroying 430 houses, nine hotels and 10 ships.

Scientists say the tsunami was probably caused by the eruption of Anak Krakatau, a volcanic island formed over years from the nearby Krakatau volcano. The Meteorology and Geophysics agency also said tidal waves may have been strengthened by the full moon.

https://www.dailymail.co.uk/news/article-6523819/At-20-people-died-160-injured-tsunami-strikes-Indonesia.html

Seventeen is an Indonesian pop rock group currently domiciled in Jakarta. This group was formed in 1999 in Yogyakarta. Members are Bani (bass), Yudhi (guitar), Herman (guitar), Andi (drums), and Ifan (vocals). They have released six albums: Bintang Terpilih (1999), Sweet Seventeen (2005), Lelaki Hebat (2008), Dunia Yang Indah (2011), Sang Juara (2013) and Pantang Mundur (2016)

Seventeen was performing at Tanjung Lesung Resort on 22 December 2018 when a tsunami struck their gig. Bani, and their manager were killed, while Herman and Andi were found dead several hours later