Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Flight Day | Song | Artist | Played for | Links |
| --- | --- | --- | --- | --- |
| Day 2 | " Beautiful Day " | U2 | Mark Kelly | WAV, MP3, OGG |
| Day 3 | " Drops of Jupiter " | Train | Greg Johnson | WAV, MP3, OGG |
| Day 4 | " Luna " | José Serrano | Gregory Chamitoff | WAV, MP3, OGG |
| Day 5 | "We All Do What We Can Do" | Dan Keenan and Kenny McLaughlin | Mike Fincke | WAV, MP3, OGG |
| Day 6 | "In View" | The Tragically Hip | Drew Feustel | WAV, MP3, OGG |
| Day 7 | "Il Mio Pensiero" | Ligabue | Roberto Vittori | WAV, MP3, OGG |
| Day 8 | " Times Like These " | Foo Fighters | Drew Feustel | WAV, MP3, OGG |
| Day 9 | " Svegliarsi la mattina " | Zero Assoluto | Roberto Vittori | WAV, MP3, OGG |
| Day 10 | " Real World " | Matchbox Twenty | Greg Johnson | WAV, MP3, OGG |
| Day 11 | " Countdown " | Rush | Mike Fincke | WAV, MP3, OGG |
| Day 12 | " Fun, Fun, Fun " | Max Q | STS-134 Crew | WAV, MP3, OGG |
| Day 13 | "Will You Carry Me?" | Michael FitzPatrick | STS-134 Crew | WAV, MP3, OGG |
| Day 14 | " Galaxy Song " | Clint Black | STS-134 Crew | WAV, MP3, OGG |
| Day 15 | "Slowness" | Calexico | Mark Kelly | WAV, MP3, OGG |
| Day 16 | "Dreams You Give" | Brian Plunkett | STS-134 Crew | WAV, MP3, OGG |
| Day 17 | "Sunrise Number 1" | Stormy Mondays | Mark Kelly | N/A |
Question:
On what flight day was U2 played?
Answer:
Day 2