Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Swathi Reddy
Table title:
Playback singer
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Title </th><th colspan=1 rowspan=1 > Language </th><th colspan=1 rowspan=1 > Song(s) </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=2 > 2011 </td><td class="highlighted"  colspan=1 rowspan=1 > Katha Screenplay Darshakatvam Appalaraju </td><td colspan=1 rowspan=3 > Telugu </td><td class="highlighted"  colspan=1 rowspan=1 > "Unbelievable" </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 100% Love </td><td class="highlighted"  colspan=1 rowspan=1 > "A Square B Square" </td></tr>
<tr> <td colspan=1 rowspan=1 > 2013 </td><td colspan=1 rowspan=1 > Swamy Ra Ra </td><td colspan=1 rowspan=1 > "Yo Yo Yo Memu Antha" </td></tr>
</table>
Question:
In what 2011 songs did Swathi Reddy sing as a playback singer, and what titles was each song in?
Answer:
In 2011, Swathi Reddy sang as playback singer for two songs, "Unbelievable" and "A Square B Square", for the albums of her own film Katha Screenplay Darshakatvam Appalaraju and 100% Love, respectively.