Trọng Hiếu

Trong Hieu Nguyen (; born 4 July 1992), known professionally as Trọng Hiếu or (S)Trong (stylised in all caps), is a German singer of Vietnamese descent, best known for winning the sixth season of Vietnam Idol in 2015.

Early life and education Trong Hieu Nguyen was born on 4 July 1992 in Bad Kissingen, Bavaria to Vietnamese parents who emigrated to Germany in 1991. He started dancing at the age of eight. After graduating from the in Bad Kissingen in 2011, he studied singing at the Music College Hannover in Hannover. He has cited Bruno Mars as one of his main artistic influences. He made it to the top twenty-five, but was eliminated before the live shows.

While on vacation in Vietnam in April 2015, Nguyen decided to audition for the sixth season of Vietnam Idol. He went on to win the competition, receiving 71.5 per cent of the public vote in the final.

In 2020, Nguyen represented Vietnam at the Asia Song Festival. On 27 January 2023, he was announced as one of the participants in , the German national selection for the Eurovision Song Contest 2023. His entry "Dare to Be Different" was co-written with Norwegian singer-songwriter Elsie Bay and Dutch songwriters Sasha Rangas and Stefan van Leijsen. At , the song finished fourth out of eight entries with 71 points.

By 2024, Nguyen re-established his career in Vietnam, first participating in Anh trai vượt ngàn chông gai'''s first season and made it into the "All-Round Family" lineup. After the competition, he and Cường Seven formed the music group Sx7. The group chose the final of Chị đẹp đạp gió as their first performance stage with a mashup of "20 phút" and "Chất chơi". He scored his first Vietnamese hit with "" in 2025.

Discography Extended plays 2021 – Trong Hieu Live in Berlin 2022 – 2023 – Yêu chill 2025 – Kho báu''

Singles As lead artist

2014 – "Peter Pan" 2015 – "" 2015 – "" 2015 – "" 2016 – " (Step to You)" 2016 – " (One Step Closer)" 2016 – "Say Ah" 2016 – "Ahhh!" 2017 – "" 2017 – "Peter Pan" 2017 – "" 2017 – "Perfect" 2018 – "" 2018 – "" 2018 – "" 2018 – "You Are the Reason" 2018 – "Girls Like You" 2018 – "Green Groove " 2019 – "Hurt Me" 2019 – " (Invisible)" 2019 – "" 2020 – "" 2020 – "" 2020 – "See What I See" 2020 – "" 2020 – "" 2020 – "" 2020 – "" 2020 – "365 Missing" 2021 – "" 2021 – "" 2021 – "" 2021 – "Highs & Lows" 2022 – "" 2022 – "I'm Sorry Babe" 2022 – "" 2023 – "Dare to Be Different" 2024 – "Rise Up" 2025 – ""

As featured artist 2020 – "IAM Superstar" 2022 – "Am I Clear?!"

Awards and nominations Award Year Category Result VTV Awards Outstanding Singer