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:
| Track # | Song | Singers | Picturization | Length | Lyricist |
| --- | --- | --- | --- | --- | --- |
| 1.0 | "Ellappugazhum" | A. R. Rahman | Vijay | 5:31 | Vaali |
| 2.0 | "Ponmagal Vandaal" | Mohammed Aslam , Ember Phoenix | Vijay, Shriya | 3:05 | Alangudi Somu |
| 3.0 | "Nee Marilyn Monroe" | Benny Dayal , Ujjayinee | Vijay, Namitha | 6:14 | Na. Muthukumar |
| 4.0 | "Valayapatti Thavile" | Naresh Iyer , Ujjayinee , Madhumitha | Vijay, Shriya | 5:44 | Na. Muthukumar |
| 5.0 | "Kelamal Kaiyile" | Sriram Parthasarathy , Saindhavi | Vijay, Shriya | 5:27 | Thamarai |
Question:
What is the highest track number?
Answer:
5.0