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:
List of awards and nominations received by Nirvana
Table title:
Grammy Awards
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Nominee / work </th><th colspan=1 rowspan=1 > Award </th><th colspan=1 rowspan=1 > Result </th></tr>
<tr> <td colspan=1 rowspan=1 > 1992 </td><td colspan=1 rowspan=1 > Nevermind </td><td colspan=1 rowspan=1 > Best Alternative Music Performance </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=2 > 1993 </td><td class="highlighted"  colspan=1 rowspan=2 > "Smells Like Teen Spirit" </td><td colspan=1 rowspan=1 > Best Hard Rock Performance </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Best Rock Song </td><td class="highlighted"  colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > 1994 </td><td colspan=1 rowspan=1 > In Utero </td><td colspan=1 rowspan=1 > Best Alternative Music Performance </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=2 > 1995 </td><td colspan=1 rowspan=2 > "All Apologies" </td><td colspan=1 rowspan=1 > Best Rock Performance by a Duo or Group with Vocal </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Best Rock Song </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > 1996 </td><td colspan=1 rowspan=1 > MTV Unplugged in New York </td><td colspan=1 rowspan=1 > Best Alternative Music Performance </td><td colspan=1 rowspan=1 > Won </td></tr>
</table>
Question:
What Category was the song "Smells Like Teen Spirit" nominated for at the 1993 Grammy Awards?
Answer:
The song "Smells Like Teen Spirit" was also nominated for Best Rock Song at the 1993 Grammy Awards.