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:
Reggie Knighton
Table title:
Singles
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=2 > Release date </th><th colspan=1 rowspan=2 > Group </th><th colspan=1 rowspan=2 > Title </th><th colspan=1 rowspan=2 > Flip side </th><th colspan=1 rowspan=2 > Record Label </th><th colspan=4 rowspan=1 > Chart Positions </th></tr>
<tr> <th colspan=1 rowspan=1 > US Billboard </th><th colspan=1 rowspan=1 > US Cashbox </th><th colspan=1 rowspan=1 > UK </th></tr>
<tr> <td colspan=1 rowspan=2 > 1975 </td><td colspan=1 rowspan=1 > The Grass Roots </td><td colspan=1 rowspan=1 > Mamacita </td><td colspan=1 rowspan=1 > The Last Time Around </td><td colspan=1 rowspan=1 > Haven </td><td colspan=1 rowspan=1 > 71 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > The Grass Roots </td><td colspan=1 rowspan=1 > Naked Man </td><td colspan=1 rowspan=1 > Nothing Good Comes Easy </td><td colspan=1 rowspan=1 > Haven </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=3 > 1976 </td><td colspan=1 rowspan=1 > The Grass Roots </td><td colspan=1 rowspan=1 > Out In The Open </td><td colspan=1 rowspan=1 > Optical Illusion </td><td colspan=1 rowspan=1 > Haven </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > John Sebastian </td><td class="highlighted"  colspan=1 rowspan=1 > Welcome Back </td><td colspan=1 rowspan=1 > Warm Baby </td><td colspan=1 rowspan=1 > Reprise </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > John Sebastian </td><td colspan=1 rowspan=1 > Hideaway </td><td colspan=1 rowspan=1 > One Step Forward, Two Steps Back </td><td colspan=1 rowspan=1 > Reprise </td><td colspan=1 rowspan=1 > 95 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=2 > 1977 </td><td colspan=1 rowspan=1 > White Horse </td><td colspan=1 rowspan=1 > It Doesn't Take Much </td><td colspan=1 rowspan=1 > Through Thick And Thin </td><td colspan=1 rowspan=1 > Capitol </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Reggie Knighton </td><td colspan=1 rowspan=1 > Clone In Love </td><td colspan=1 rowspan=1 > Magnum Sally </td><td colspan=1 rowspan=1 > ARC </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1978 </td><td colspan=1 rowspan=1 > Reggie Knighton Band </td><td colspan=1 rowspan=1 > Rock 'N' Roll Alien </td><td colspan=1 rowspan=1 > Lear Jet </td><td colspan=1 rowspan=1 > CBS </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
How did Reggie Knighton and John Sebastian work together in 1976?
Answer:
In 1976, Reggie Knighton worked with John Sebastian on the "Welcome Back" album.