Conversation so far:
What are the songs Joey Yung released in these years 2007-2009?
At the end of 2006, Yung released the Cantonese album Close Up with music videos for the songs Splendid Encounter and Elated Heart“
What other albums Joey Yung had in these years 2007-2009?
Insignificant Me, Glow, In Motion, A Time for Us, Very Busy
Did Joey Yung won any awards in these years 2007-2009?
Yung performed at the concert Music Is Live with Mobile Chan, and won the Media Award for the third time
Did her albums in these years 2007-2009 make hits?
Close Up is Joey's most successful album in chart performance, with three 4 station No. 1 plugs, and two songs that placed within CRHK's Top Ten Songs of the Year
What happen in 2009 for Joey Yung?
The year 2009 marked the tenth anniversary of Yung's career with EEG. To celebrate the occasion, two albums (A Time For Us and Very Busy) and a documentary were released and a mini-concert
Was A time For Us and Very Busy albums a hit in the market for Joey Yung?
Very Busy was awarded one of the Top 10 Selling Mandarin Albums of the Year at the 2009 IFPI Hong Kong Album Sales Awards

Question: What is Glow?
Self-contained rewrite: What is Glow for Joey Yung?