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:
| Week # | Theme | Song choice | Original artist | Order # | Result |
| --- | --- | --- | --- | --- | --- |
| Audition | N/A | "Stereotipa" | Dimitra Galani | N/A | Advanced |
| Athens recall | N/A | " Paparazzi " "Dithesio" "Me Tin Porta Anihti" | Lady Gaga Alkistis Protopsalti Antonis Remos | N/A | Advanced |
| Top 15 | Contestant's favorite | "Trava Skandali" | Alkistis Protopsalti | 7 | Advanced |
| Top 10 | Dance hits | " Don't Leave Me This Way " | Thelma Houston | 6 | Safe |
| Top 9 | Movie hits | " To Fili Tis Zois " | Elena Paparizou | 1 | Safe |
| Top 8 | Today's hits | " Empire State of Mind (Part II) Broken Down " | Alicia Keys | 5 | Safe |
| Top 7 | Contestant's idol | "Den Thelo Na Ksereis" | Anna Vissi | 3 | Safe |
| Top 6 | Rock hits | " Piece of My Heart " "Poula Me" | Big Brother and the Holding Company Pyx Lax | 4 10 | Safe |
| Top 5 | Summer hits , Dedications | " Alejandro " " Forever Young " | Lady Gaga Youth Group | 4 7 | Safe |
Question:
Which artists have order number 6?
Answer:
Thelma Houston